What is this? please

Get “http://unix/v2/snaps”: dial unix /var/run/snapd.socket: connect: connection refused

Hm, seems like installer service (snapd) is not running.
Did you upgraded it recently?
Can you send logs?
Workaround is probably to start it:

systemctl status snapd
systemctl start snapd

It shows me this when I apply (systemctl status snapd)

snapd.service - Snappy daemon

Loaded: loaded (/lib/systemd/system/snapd.service; enabled; vendor preset: en

Active: failed (Result: exit-code) since Tue 2023-03-21 19:30:58 UTC; 4min 2s

Process: 3994 ExecStart=/usr/lib/snapd/snapd (code=exited, status=2)

Main PID: 3994 (code=exited, status=2)

Mar 21 19:30:58 syncloud systemd[1]: snapd.service: Service RestartSec=100ms exp

Mar 21 19:30:58 syncloud systemd[1]: snapd.service: Scheduled restart job, resta

Mar 21 19:30:58 syncloud systemd[1]: Stopped Snappy daemon.

Mar 21 19:30:58 syncloud systemd[1]: snapd.service: Start request repeated too q

Mar 21 19:30:58 syncloud systemd[1]: snapd.service: Failed with result 'exit-cod

Mar 21 19:30:58 syncloud systemd[1]: Failed to start Snappy daemon.

lines 1-12/12 (END)

Then I apply the second command (systemctl start snapd) but I still get the same error

What about this:

journalctl -u snapd | tail -100

i get this…

Mar 21 16:25:41 syncloud systemd[1]: snapd.service: Failed with result ‘exit-code’.
Mar 21 16:25:41 syncloud systemd[1]: Failed to start Snappy daemon.
Mar 21 19:30:56 syncloud systemd[1]: Starting Snappy daemon…
Mar 21 19:30:56 syncloud snapd[3945]: 2023/03/21 19:30:56.684487 daemon.go:322: started snapd/361 (series 16; classic) debian/10 (amd64) linux/5.8.0-33-generic.
Mar 21 19:30:56 syncloud systemd[1]: Started Snappy daemon.
Mar 21 19:30:56 syncloud snapd[3945]: 2023/03/21 19:30:56.693545 store.go:922: not writing catalogs
Mar 21 19:30:56 syncloud snapd[3945]: panic: runtime error: slice bounds out of range [3:2]
Mar 21 19:30:56 syncloud snapd[3945]: goroutine 11 [running]:
Mar 21 19:30:56 syncloud snapd[3945]: github.com/snapcore/snapd/overlord/snapstate.(*SnapManager).undoLinkSnap(0xc000100320, 0xc0002e1440, 0x0)
Mar 21 19:30:56 syncloud snapd[3945]: /drone/src/overlord/snapstate/handlers.go:764 +0xd58
Mar 21 19:30:56 syncloud snapd[3945]: github.com/snapcore/snapd/overlord/state.(*TaskRunner).run.func1()
Mar 21 19:30:56 syncloud snapd[3945]: /drone/src/overlord/state/taskrunner.go:179 +0x62
Mar 21 19:30:56 syncloud snapd[3945]: gopkg.in/tomb%2ev2.(*Tomb).run(0xc000354460, 0x0)
Mar 21 19:30:56 syncloud snapd[3945]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:163 +0x36
Mar 21 19:30:56 syncloud snapd[3945]: created by gopkg.in/tomb%2ev2.(*Tomb).Go
Mar 21 19:30:56 syncloud snapd[3945]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:159 +0xf3
Mar 21 19:30:56 syncloud systemd[1]: snapd.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Mar 21 19:30:56 syncloud systemd[1]: snapd.service: Failed with result ‘exit-code’.
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Service RestartSec=100ms expired, scheduling restart.
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Scheduled restart job, restart counter is at 1.
Mar 21 19:30:57 syncloud systemd[1]: Stopped Snappy daemon.
Mar 21 19:30:57 syncloud systemd[1]: Starting Snappy daemon…
Mar 21 19:30:57 syncloud snapd[3958]: 2023/03/21 19:30:57.157764 daemon.go:322: started snapd/361 (series 16; classic) debian/10 (amd64) linux/5.8.0-33-generic.
Mar 21 19:30:57 syncloud systemd[1]: Started Snappy daemon.
Mar 21 19:30:57 syncloud snapd[3958]: 2023/03/21 19:30:57.167444 store.go:922: not writing catalogs
Mar 21 19:30:57 syncloud snapd[3958]: panic: runtime error: slice bounds out of range [3:2]
Mar 21 19:30:57 syncloud snapd[3958]: goroutine 51 [running]:
Mar 21 19:30:57 syncloud snapd[3958]: github.com/snapcore/snapd/overlord/snapstate.(*SnapManager).undoLinkSnap(0xc00007a320, 0xc0002f5320, 0x0)
Mar 21 19:30:57 syncloud snapd[3958]: /drone/src/overlord/snapstate/handlers.go:764 +0xd58
Mar 21 19:30:57 syncloud snapd[3958]: github.com/snapcore/snapd/overlord/state.(*TaskRunner).run.func1()
Mar 21 19:30:57 syncloud snapd[3958]: /drone/src/overlord/state/taskrunner.go:179 +0x62
Mar 21 19:30:57 syncloud snapd[3958]: gopkg.in/tomb%2ev2.(*Tomb).run(0xc0005aa000, 0x0)
Mar 21 19:30:57 syncloud snapd[3958]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:163 +0x36
Mar 21 19:30:57 syncloud snapd[3958]: created by gopkg.in/tomb%2ev2.(*Tomb).Go
Mar 21 19:30:57 syncloud snapd[3958]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:159 +0xf3
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Failed with result ‘exit-code’.
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Service RestartSec=100ms expired, scheduling restart.
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Scheduled restart job, restart counter is at 2.
Mar 21 19:30:57 syncloud systemd[1]: Stopped Snappy daemon.
Mar 21 19:30:57 syncloud systemd[1]: Starting Snappy daemon…
Mar 21 19:30:57 syncloud snapd[3973]: 2023/03/21 19:30:57.367094 daemon.go:322: started snapd/361 (series 16; classic) debian/10 (amd64) linux/5.8.0-33-generic.
Mar 21 19:30:57 syncloud systemd[1]: Started Snappy daemon.
Mar 21 19:30:57 syncloud snapd[3973]: 2023/03/21 19:30:57.374504 store.go:922: not writing catalogs
Mar 21 19:30:57 syncloud snapd[3973]: panic: runtime error: slice bounds out of range [3:2]
Mar 21 19:30:57 syncloud snapd[3973]: goroutine 38 [running]:
Mar 21 19:30:57 syncloud snapd[3973]: github.com/snapcore/snapd/overlord/snapstate.(*SnapManager).undoLinkSnap(0xc0000b5900, 0xc000456240, 0xc0000dcb80)
Mar 21 19:30:57 syncloud snapd[3973]: /drone/src/overlord/snapstate/handlers.go:764 +0xd58
Mar 21 19:30:57 syncloud snapd[3973]: github.com/snapcore/snapd/overlord/state.(*TaskRunner).run.func1()
Mar 21 19:30:57 syncloud snapd[3973]: /drone/src/overlord/state/taskrunner.go:179 +0x62
Mar 21 19:30:57 syncloud snapd[3973]: gopkg.in/tomb%2ev2.(*Tomb).run(0xc0004c8140, 0x0)
Mar 21 19:30:57 syncloud snapd[3973]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:163 +0x36
Mar 21 19:30:57 syncloud snapd[3973]: created by gopkg.in/tomb%2ev2.(*Tomb).Go
Mar 21 19:30:57 syncloud snapd[3973]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:159 +0xf3
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Failed with result ‘exit-code’.
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Service RestartSec=100ms expired, scheduling restart.
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Scheduled restart job, restart counter is at 3.
Mar 21 19:30:57 syncloud systemd[1]: Stopped Snappy daemon.
Mar 21 19:30:57 syncloud systemd[1]: Starting Snappy daemon…
Mar 21 19:30:57 syncloud snapd[3983]: 2023/03/21 19:30:57.664815 daemon.go:322: started snapd/361 (series 16; classic) debian/10 (amd64) linux/5.8.0-33-generic.
Mar 21 19:30:57 syncloud systemd[1]: Started Snappy daemon.
Mar 21 19:30:57 syncloud snapd[3983]: 2023/03/21 19:30:57.672883 store.go:922: not writing catalogs
Mar 21 19:30:57 syncloud snapd[3983]: panic: runtime error: slice bounds out of range [3:2]
Mar 21 19:30:57 syncloud snapd[3983]: goroutine 8 [running]:
Mar 21 19:30:57 syncloud snapd[3983]: github.com/snapcore/snapd/overlord/snapstate.(*SnapManager).undoLinkSnap(0xc0007001e0, 0xc0000cf320, 0xc000618a00)
Mar 21 19:30:57 syncloud snapd[3983]: /drone/src/overlord/snapstate/handlers.go:764 +0xd58
Mar 21 19:30:57 syncloud snapd[3983]: github.com/snapcore/snapd/overlord/state.(*TaskRunner).run.func1()
Mar 21 19:30:57 syncloud snapd[3983]: /drone/src/overlord/state/taskrunner.go:179 +0x62
Mar 21 19:30:57 syncloud snapd[3983]: gopkg.in/tomb%2ev2.(*Tomb).run(0xc000282140, 0x0)
Mar 21 19:30:57 syncloud snapd[3983]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:163 +0x36
Mar 21 19:30:57 syncloud snapd[3983]: created by gopkg.in/tomb%2ev2.(*Tomb).Go
Mar 21 19:30:57 syncloud snapd[3983]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:159 +0xf3
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Failed with result ‘exit-code’.
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Service RestartSec=100ms expired, scheduling restart.
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Scheduled restart job, restart counter is at 4.
Mar 21 19:30:57 syncloud systemd[1]: Stopped Snappy daemon.
Mar 21 19:30:57 syncloud systemd[1]: Starting Snappy daemon…
Mar 21 19:30:57 syncloud snapd[3994]: 2023/03/21 19:30:57.876980 daemon.go:322: started snapd/361 (series 16; classic) debian/10 (amd64) linux/5.8.0-33-generic.
Mar 21 19:30:57 syncloud systemd[1]: Started Snappy daemon.
Mar 21 19:30:57 syncloud snapd[3994]: 2023/03/21 19:30:57.884605 store.go:922: not writing catalogs
Mar 21 19:30:57 syncloud snapd[3994]: panic: runtime error: slice bounds out of range [3:2]
Mar 21 19:30:57 syncloud snapd[3994]: goroutine 35 [running]:
Mar 21 19:30:57 syncloud snapd[3994]: github.com/snapcore/snapd/overlord/snapstate.(*SnapManager).undoLinkSnap(0xc00007a320, 0xc0001df200, 0x0)
Mar 21 19:30:57 syncloud snapd[3994]: /drone/src/overlord/snapstate/handlers.go:764 +0xd58
Mar 21 19:30:57 syncloud snapd[3994]: github.com/snapcore/snapd/overlord/state.(*TaskRunner).run.func1()
Mar 21 19:30:57 syncloud snapd[3994]: /drone/src/overlord/state/taskrunner.go:179 +0x62
Mar 21 19:30:57 syncloud snapd[3994]: gopkg.in/tomb%2ev2.(*Tomb).run(0xc0002fe460, 0x0)
Mar 21 19:30:57 syncloud snapd[3994]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:163 +0x36
Mar 21 19:30:57 syncloud snapd[3994]: created by gopkg.in/tomb%2ev2.(*Tomb).Go
Mar 21 19:30:57 syncloud snapd[3994]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:159 +0xf3
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Mar 21 19:30:57 syncloud systemd[1]: snapd.service: Failed with result ‘exit-code’.
Mar 21 19:30:58 syncloud systemd[1]: snapd.service: Service RestartSec=100ms expired, scheduling restart.
Mar 21 19:30:58 syncloud systemd[1]: snapd.service: Scheduled restart job, restart counter is at 5.
Mar 21 19:30:58 syncloud systemd[1]: Stopped Snappy daemon.
Mar 21 19:30:58 syncloud systemd[1]: snapd.service: Start request repeated too quickly.
Mar 21 19:30:58 syncloud systemd[1]: snapd.service: Failed with result ‘exit-code’.
Mar 21 19:30:58 syncloud systemd[1]: Failed to start Snappy daemon.

Did you upgrade installer recently? From Settings - Updates.

Can you try rebooting the device?
Also please send logs.

Logs from Settings - Support as it gives me more info.

Yes, I have made updates recently, nothing unusual. I noticed this error in the morning when i saw nextcloud not working properly. However plex works perfectly. I have also rebooted several times. I already sent you a copy with the logs

Right, I did not know the logs were from you.
Let me check a bit more.

Can you run these commands:

ls -la /snap
losetup -l
systemctl start snapd
journalctl | tail -200

And post the output of each please.

ls -la /snap

total 32
drwxr-xr-x 7 root root 4096 Oct 13 02:31 .
drwxr-xr-x 19 root root 4096 Mar 10 05:18 …
-r–r–r-- 1 root root 548 Feb 21 2022 README
drwxr-xr-x 2 root root 4096 Mar 21 07:25 bin
drwxr-xr-x 4 root root 4096 Mar 21 07:25 nextcloud
drwxr-xr-x 3 root root 4096 Oct 13 02:31 openvpn
drwxr-xr-x 5 root root 4096 Mar 10 05:18 platform
drwxr-xr-x 5 root root 4096 Mar 15 23:14 plex

losetup -l

NAME SIZELIMIT OFFSET AUTOCLEAR RO BACK-FILE DIO LOG-SEC
/dev/loop1
0 0 1 1 /var/lib/snapd/snaps/openvpn_181.snap
0 512
/dev/loop8
0 0 1 1 /var/lib/snapd/snaps/platform_1760.snap
0 512
/dev/loop6
0 0 1 1 /var/lib/snapd/snaps/nextcloud_676.snap
0 512
/dev/loop4
0 0 1 1 /var/lib/snapd/snaps/platform_1851.snap
0 512
/dev/loop2
0 0 1 1 /var/lib/snapd/snaps/nextcloud_660.snap
0 512
/dev/loop0
0 0 1 1 /var/lib/snapd/snaps/plex_154.snap
0 512
/dev/loop7
0 0 1 1 /var/lib/snapd/snaps/platform_1862.snap
0 512
/dev/loop5
0 0 1 1 /var/lib/snapd/snaps/plex_160.snap
0 512
/dev/loop3
0 0 1 1 /var/lib/snapd/snaps/plex_150.snap
0 512

journalctl | tail -200

Mar 22 00:23:12 syncloud sh[561]: RCV: | X-- t2 - rebind +5400
Mar 22 00:23:12 syncloud sh[561]: RCV: | X-- [Options]
Mar 22 00:23:12 syncloud sh[561]: RCV: | !-- Status code of no prefix, IA_PD discarded.
Mar 22 00:23:12 syncloud sh[561]: RCV: X-- Server ID: 00:01:00:01:2b:ac:0e:64:ac:db:48:f0:7d:a4
Mar 22 00:23:12 syncloud sh[561]: PRC: Lease failed to satisfy.
Mar 22 00:24:37 syncloud platform.backend[600]: info cert/generator.go:83 certificate info {“category”: “certificate”, “valid days”: 88, “real”: true}
Mar 22 00:24:37 syncloud platform.backend[600]: info cert/generator.go:86 not regenerating real certificate {“category”: “certificate”}
Mar 22 00:24:37 syncloud platform.backend[600]: 2023/03/22 00:24:37 [DEBUG] POST https://api.syncloud.it/domain/update
Mar 22 00:24:38 syncloud platform.backend[600]: error snap/server.go:177 cannot connect {“error”: “Get "http://unix/v2/snaps\”: dial unix /var/run/snapd.socket: connect: connection refused"}
Mar 22 00:24:38 syncloud platform.backend[600]: github.com/syncloud/platform/snap.(*Server).httpGet
Mar 22 00:24:38 syncloud platform.backend[600]: /drone/src/backend/snap/server.go:177
Mar 22 00:24:38 syncloud platform.backend[600]: github.com/syncloud/platform/snap.(*Server).Snaps
Mar 22 00:24:38 syncloud platform.backend[600]: /drone/src/backend/snap/server.go:91
Mar 22 00:24:38 syncloud platform.backend[600]: github.com/syncloud/platform/snap.(*Server).InstalledUserApps
Mar 22 00:24:38 syncloud platform.backend[600]: /drone/src/backend/snap/server.go:61
Mar 22 00:24:38 syncloud platform.backend[600]: github.com/syncloud/platform/cron.(*BackupJob).Run
Mar 22 00:24:38 syncloud platform.backend[600]: /drone/src/backend/cron/backup_job.go:62
Mar 22 00:24:38 syncloud platform.backend[600]: github.com/syncloud/platform/cron.(*Cron).StartSingle
Mar 22 00:24:38 syncloud platform.backend[600]: /drone/src/backend/cron/runner.go:29
Mar 22 00:24:38 syncloud platform.backend[600]: github.com/syncloud/platform/cron.(*Cron).Start.func1
Mar 22 00:24:38 syncloud platform.backend[600]: /drone/src/backend/cron/runner.go:40
Mar 22 00:24:38 syncloud platform.backend[600]: 2023/03/22 00:24:38 Cron job failed: Get “http://unix/v2/snaps”: dial unix /var/run/snapd.socket: connect: connection refused
Mar 22 00:25:12 syncloud sh[561]: XMT: Forming Solicit, 655350 ms elapsed.
Mar 22 00:25:12 syncloud sh[561]: XMT: X-- IA_PD 7a:a1:67:d7
Mar 22 00:25:12 syncloud sh[561]: XMT: | X-- Request renew in +3600
Mar 22 00:25:12 syncloud sh[561]: XMT: | X-- Request rebind in +5400
Mar 22 00:25:12 syncloud sh[561]: XMT: Solicit on eth0, interval 118320ms.
Mar 22 00:25:12 syncloud dhclient[1121]: XMT: Solicit on eth0, interval 118320ms.
Mar 22 00:25:12 syncloud dhclient[1121]: RCV: Advertise message on eth0 from fe80::aedb:48ff:fef0:7da4.
Mar 22 00:25:12 syncloud sh[561]: RCV: Advertise message on eth0 from fe80::aedb:48ff:fef0:7da4.
Mar 22 00:25:12 syncloud sh[561]: RCV: X-- Preference 255.
Mar 22 00:25:12 syncloud sh[561]: RCV: X-- IA_PD 7a:a1:67:d7
Mar 22 00:25:12 syncloud sh[561]: RCV: | X-- starts 1679444712
Mar 22 00:25:12 syncloud sh[561]: RCV: | X-- t1 - renew +3600
Mar 22 00:25:12 syncloud sh[561]: RCV: | X-- t2 - rebind +5400
Mar 22 00:25:12 syncloud sh[561]: RCV: | X-- [Options]
Mar 22 00:25:12 syncloud sh[561]: RCV: | !-- Status code of no prefix, IA_PD discarded.
Mar 22 00:25:12 syncloud sh[561]: RCV: X-- Server ID: 00:01:00:01:2b:ac:0e:64:ac:db:48:f0:7d:a4
Mar 22 00:25:12 syncloud sh[561]: PRC: Lease failed to satisfy.
Mar 22 00:25:59 syncloud plex.server[643]: recv: Connection reset by peer
Mar 22 00:25:59 syncloud plex.server[643]: recv: Connection reset by peer
Mar 22 00:25:59 syncloud plex.server[643]: recv: Connection reset by peer
Mar 22 00:25:59 syncloud plex.server[643]: recv: Connection reset by peer
Mar 22 00:26:03 syncloud PlexMediaServer[643]: NAT: PMP, got an error: Not Supported by gateway.
Mar 22 00:26:07 syncloud PlexMediaServer[643]: NAT: PMP, got an error: Not Supported by gateway.
Mar 22 00:26:07 syncloud PlexMediaServer[643]: [HttpClient/HCl#3d5] HTTP error requesting GET https://73-139-22-31.1698270cb1a94b34af67ad1c3d5c623c.plex.direct:0/identity (3, URL using bad/illegal format or missing URL) ()
Mar 22 00:27:11 syncloud sh[561]: XMT: Forming Solicit, 655350 ms elapsed.
Mar 22 00:27:11 syncloud sh[561]: XMT: X-- IA_PD 7a:a1:67:d7
Mar 22 00:27:11 syncloud sh[561]: XMT: | X-- Request renew in +3600
Mar 22 00:27:11 syncloud sh[561]: XMT: | X-- Request rebind in +5400
Mar 22 00:27:11 syncloud sh[561]: XMT: Solicit on eth0, interval 112910ms.
Mar 22 00:27:11 syncloud dhclient[1121]: XMT: Solicit on eth0, interval 112910ms.
Mar 22 00:27:11 syncloud dhclient[1121]: RCV: Advertise message on eth0 from fe80::aedb:48ff:fef0:7da4.
Mar 22 00:27:11 syncloud sh[561]: RCV: Advertise message on eth0 from fe80::aedb:48ff:fef0:7da4.
Mar 22 00:27:11 syncloud sh[561]: RCV: X-- Preference 255.
Mar 22 00:27:11 syncloud sh[561]: RCV: X-- IA_PD 7a:a1:67:d7
Mar 22 00:27:11 syncloud sh[561]: RCV: | X-- starts 1679444831
Mar 22 00:27:11 syncloud sh[561]: RCV: | X-- t1 - renew +3600
Mar 22 00:27:11 syncloud sh[561]: RCV: | X-- t2 - rebind +5400
Mar 22 00:27:11 syncloud sh[561]: RCV: | X-- [Options]
Mar 22 00:27:11 syncloud sh[561]: RCV: | !-- Status code of no prefix, IA_PD discarded.
Mar 22 00:27:11 syncloud sh[561]: RCV: X-- Server ID: 00:01:00:01:2b:ac:0e:64:ac:db:48:f0:7d:a4
Mar 22 00:27:11 syncloud sh[561]: PRC: Lease failed to satisfy.
Mar 22 00:27:58 syncloud sshd[7142]: Accepted password for root from 10.0.0.23 port 51272 ssh2
Mar 22 00:27:58 syncloud sshd[7142]: pam_unix(sshd:session): session opened for user root by (uid=0)
Mar 22 00:29:04 syncloud sh[561]: XMT: Forming Solicit, 655350 ms elapsed.
Mar 22 00:29:04 syncloud sh[561]: XMT: X-- IA_PD 7a:a1:67:d7
Mar 22 00:29:04 syncloud sh[561]: XMT: | X-- Request renew in +3600
Mar 22 00:29:04 syncloud sh[561]: XMT: | X-- Request rebind in +5400
Mar 22 00:29:04 syncloud sh[561]: XMT: Solicit on eth0, interval 114910ms.
Mar 22 00:29:04 syncloud dhclient[1121]: XMT: Solicit on eth0, interval 114910ms.
Mar 22 00:29:04 syncloud dhclient[1121]: RCV: Advertise message on eth0 from fe80::aedb:48ff:fef0:7da4.
Mar 22 00:29:04 syncloud sh[561]: RCV: Advertise message on eth0 from fe80::aedb:48ff:fef0:7da4.
Mar 22 00:29:04 syncloud sh[561]: RCV: X-- Preference 255.
Mar 22 00:29:04 syncloud sh[561]: RCV: X-- IA_PD 7a:a1:67:d7
Mar 22 00:29:04 syncloud sh[561]: RCV: | X-- starts 1679444944
Mar 22 00:29:04 syncloud sh[561]: RCV: | X-- t1 - renew +3600
Mar 22 00:29:04 syncloud sh[561]: RCV: | X-- t2 - rebind +5400
Mar 22 00:29:04 syncloud sh[561]: RCV: | X-- [Options]
Mar 22 00:29:04 syncloud sh[561]: RCV: | !-- Status code of no prefix, IA_PD discarded.
Mar 22 00:29:04 syncloud sh[561]: RCV: X-- Server ID: 00:01:00:01:2b:ac:0e:64:ac:db:48:f0:7d:a4
Mar 22 00:29:04 syncloud sh[561]: PRC: Lease failed to satisfy.
Mar 22 00:29:36 syncloud systemd[1]: Starting Socket activation for snappy daemon.
Mar 22 00:29:36 syncloud systemd[1]: Listening on Socket activation for snappy daemon.
Mar 22 00:29:36 syncloud systemd[1]: Starting Snappy daemon…
Mar 22 00:29:36 syncloud snapd[7170]: 2023/03/22 00:29:36.751681 daemon.go:322: started snapd/361 (series 16; classic) debian/10 (amd64) linux/5.8.0-33-generic.
Mar 22 00:29:36 syncloud systemd[1]: Started Snappy daemon.
Mar 22 00:29:36 syncloud snapd[7170]: 2023/03/22 00:29:36.794752 store.go:922: not writing catalogs
Mar 22 00:29:36 syncloud snapd[7170]: panic: runtime error: slice bounds out of range [3:2]
Mar 22 00:29:36 syncloud snapd[7170]: goroutine 51 [running]:
Mar 22 00:29:36 syncloud snapd[7170]: github.com/snapcore/snapd/overlord/snapstate.(*SnapManager).undoLinkSnap(0xc00007a320, 0xc000219200, 0xc000690c80)
Mar 22 00:29:36 syncloud snapd[7170]: /drone/src/overlord/snapstate/handlers.go:764 +0xd58
Mar 22 00:29:36 syncloud snapd[7170]: github.com/snapcore/snapd/overlord/state.(*TaskRunner).run.func1()
Mar 22 00:29:36 syncloud snapd[7170]: /drone/src/overlord/state/taskrunner.go:179 +0x62
Mar 22 00:29:36 syncloud snapd[7170]: gopkg.in/tomb%2ev2.(*Tomb).run(0xc0005c4140, 0x0)
Mar 22 00:29:36 syncloud snapd[7170]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:163 +0x36
Mar 22 00:29:36 syncloud snapd[7170]: created by gopkg.in/tomb%2ev2.(*Tomb).Go
Mar 22 00:29:36 syncloud snapd[7170]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:159 +0xf3
Mar 22 00:29:36 syncloud systemd[1]: snapd.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Mar 22 00:29:36 syncloud systemd[1]: snapd.service: Failed with result ‘exit-code’.
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Service RestartSec=100ms expired, scheduling restart.
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Scheduled restart job, restart counter is at 1.
Mar 22 00:29:37 syncloud systemd[1]: Stopped Snappy daemon.
Mar 22 00:29:37 syncloud systemd[1]: Starting Snappy daemon…
Mar 22 00:29:37 syncloud snapd[7182]: 2023/03/22 00:29:37.156287 daemon.go:322: started snapd/361 (series 16; classic) debian/10 (amd64) linux/5.8.0-33-generic.
Mar 22 00:29:37 syncloud systemd[1]: Started Snappy daemon.
Mar 22 00:29:37 syncloud snapd[7182]: 2023/03/22 00:29:37.163916 store.go:922: not writing catalogs
Mar 22 00:29:37 syncloud snapd[7182]: panic: runtime error: slice bounds out of range [3:2]
Mar 22 00:29:37 syncloud snapd[7182]: goroutine 19 [running]:
Mar 22 00:29:37 syncloud snapd[7182]: github.com/snapcore/snapd/overlord/snapstate.(*SnapManager).undoLinkSnap(0xc00007a320, 0xc0002f3320, 0xc00061ca80)
Mar 22 00:29:37 syncloud snapd[7182]: /drone/src/overlord/snapstate/handlers.go:764 +0xd58
Mar 22 00:29:37 syncloud snapd[7182]: github.com/snapcore/snapd/overlord/state.(*TaskRunner).run.func1()
Mar 22 00:29:37 syncloud snapd[7182]: /drone/src/overlord/state/taskrunner.go:179 +0x62
Mar 22 00:29:37 syncloud snapd[7182]: gopkg.in/tomb%2ev2.(*Tomb).run(0xc00054e140, 0x0)
Mar 22 00:29:37 syncloud snapd[7182]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:163 +0x36
Mar 22 00:29:37 syncloud snapd[7182]: created by gopkg.in/tomb%2ev2.(*Tomb).Go
Mar 22 00:29:37 syncloud snapd[7182]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:159 +0xf3
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Failed with result ‘exit-code’.
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Service RestartSec=100ms expired, scheduling restart.
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Scheduled restart job, restart counter is at 2.
Mar 22 00:29:37 syncloud systemd[1]: Stopped Snappy daemon.
Mar 22 00:29:37 syncloud systemd[1]: Starting Snappy daemon…
Mar 22 00:29:37 syncloud snapd[7195]: 2023/03/22 00:29:37.368942 daemon.go:322: started snapd/361 (series 16; classic) debian/10 (amd64) linux/5.8.0-33-generic.
Mar 22 00:29:37 syncloud systemd[1]: Started Snappy daemon.
Mar 22 00:29:37 syncloud snapd[7195]: 2023/03/22 00:29:37.378467 store.go:922: not writing catalogs
Mar 22 00:29:37 syncloud snapd[7195]: panic: runtime error: slice bounds out of range [3:2]
Mar 22 00:29:37 syncloud snapd[7195]: goroutine 11 [running]:
Mar 22 00:29:37 syncloud snapd[7195]: github.com/snapcore/snapd/overlord/snapstate.(*SnapManager).undoLinkSnap(0xc00007b950, 0xc000478240, 0x0)
Mar 22 00:29:37 syncloud snapd[7195]: /drone/src/overlord/snapstate/handlers.go:764 +0xd58
Mar 22 00:29:37 syncloud snapd[7195]: github.com/snapcore/snapd/overlord/state.(*TaskRunner).run.func1()
Mar 22 00:29:37 syncloud snapd[7195]: /drone/src/overlord/state/taskrunner.go:179 +0x62
Mar 22 00:29:37 syncloud snapd[7195]: gopkg.in/tomb%2ev2.(*Tomb).run(0xc00007b6d0, 0x0)
Mar 22 00:29:37 syncloud snapd[7195]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:163 +0x36
Mar 22 00:29:37 syncloud snapd[7195]: created by gopkg.in/tomb%2ev2.(*Tomb).Go
Mar 22 00:29:37 syncloud snapd[7195]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:159 +0xf3
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Failed with result ‘exit-code’.
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Service RestartSec=100ms expired, scheduling restart.
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Scheduled restart job, restart counter is at 3.
Mar 22 00:29:37 syncloud systemd[1]: Stopped Snappy daemon.
Mar 22 00:29:37 syncloud systemd[1]: Starting Snappy daemon…
Mar 22 00:29:37 syncloud snapd[7206]: 2023/03/22 00:29:37.622684 daemon.go:322: started snapd/361 (series 16; classic) debian/10 (amd64) linux/5.8.0-33-generic.
Mar 22 00:29:37 syncloud systemd[1]: Started Snappy daemon.
Mar 22 00:29:37 syncloud snapd[7206]: 2023/03/22 00:29:37.630054 store.go:922: not writing catalogs
Mar 22 00:29:37 syncloud snapd[7206]: panic: runtime error: slice bounds out of range [3:2]
Mar 22 00:29:37 syncloud snapd[7206]: goroutine 25 [running]:
Mar 22 00:29:37 syncloud snapd[7206]: github.com/snapcore/snapd/overlord/snapstate.(*SnapManager).undoLinkSnap(0xc00007a1e0, 0xc000614ea0, 0x0)
Mar 22 00:29:37 syncloud snapd[7206]: /drone/src/overlord/snapstate/handlers.go:764 +0xd58
Mar 22 00:29:37 syncloud snapd[7206]: github.com/snapcore/snapd/overlord/state.(*TaskRunner).run.func1()
Mar 22 00:29:37 syncloud snapd[7206]: /drone/src/overlord/state/taskrunner.go:179 +0x62
Mar 22 00:29:37 syncloud snapd[7206]: gopkg.in/tomb%2ev2.(*Tomb).run(0xc0001e4050, 0x0)
Mar 22 00:29:37 syncloud snapd[7206]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:163 +0x36
Mar 22 00:29:37 syncloud snapd[7206]: created by gopkg.in/tomb%2ev2.(*Tomb).Go
Mar 22 00:29:37 syncloud snapd[7206]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:159 +0xf3
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Failed with result ‘exit-code’.
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Service RestartSec=100ms expired, scheduling restart.
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Scheduled restart job, restart counter is at 4.
Mar 22 00:29:37 syncloud systemd[1]: Stopped Snappy daemon.
Mar 22 00:29:37 syncloud systemd[1]: Starting Snappy daemon…
Mar 22 00:29:37 syncloud snapd[7217]: 2023/03/22 00:29:37.910518 daemon.go:322: started snapd/361 (series 16; classic) debian/10 (amd64) linux/5.8.0-33-generic.
Mar 22 00:29:37 syncloud systemd[1]: Started Snappy daemon.
Mar 22 00:29:37 syncloud snapd[7217]: 2023/03/22 00:29:37.918377 store.go:922: not writing catalogs
Mar 22 00:29:37 syncloud snapd[7217]: panic: runtime error: slice bounds out of range [3:2]
Mar 22 00:29:37 syncloud snapd[7217]: goroutine 66 [running]:
Mar 22 00:29:37 syncloud snapd[7217]: github.com/snapcore/snapd/overlord/snapstate.(*SnapManager).undoLinkSnap(0xc0000b42d0, 0xc000293320, 0x0)
Mar 22 00:29:37 syncloud snapd[7217]: /drone/src/overlord/snapstate/handlers.go:764 +0xd58
Mar 22 00:29:37 syncloud snapd[7217]: github.com/snapcore/snapd/overlord/state.(*TaskRunner).run.func1()
Mar 22 00:29:37 syncloud snapd[7217]: /drone/src/overlord/state/taskrunner.go:179 +0x62
Mar 22 00:29:37 syncloud snapd[7217]: gopkg.in/tomb%2ev2.(*Tomb).run(0xc0005a2000, 0x0)
Mar 22 00:29:37 syncloud snapd[7217]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:163 +0x36
Mar 22 00:29:37 syncloud snapd[7217]: created by gopkg.in/tomb%2ev2.(*Tomb).Go
Mar 22 00:29:37 syncloud snapd[7217]: /go/pkg/mod/gopkg.in/tomb.v2@v2.0.0-20161208151619-d5d1b5820637/tomb.go:159 +0xf3
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Mar 22 00:29:37 syncloud systemd[1]: snapd.service: Failed with result ‘exit-code’.
Mar 22 00:29:38 syncloud platform.backend[600]: info cert/generator.go:83 certificate info {“category”: “certificate”, “valid days”: 88, “real”: true}
Mar 22 00:29:38 syncloud platform.backend[600]: info cert/generator.go:86 not regenerating real certificate {“category”: “certificate”}
Mar 22 00:29:38 syncloud platform.backend[600]: 2023/03/22 00:29:38 [DEBUG] POST https://api.syncloud.it/domain/update
Mar 22 00:29:38 syncloud systemd[1]: snapd.service: Service RestartSec=100ms expired, scheduling restart.
Mar 22 00:29:38 syncloud systemd[1]: snapd.service: Scheduled restart job, restart counter is at 5.
Mar 22 00:29:38 syncloud systemd[1]: Stopped Snappy daemon.
Mar 22 00:29:38 syncloud systemd[1]: snapd.service: Start request repeated too quickly.
Mar 22 00:29:38 syncloud systemd[1]: snapd.service: Failed with result ‘exit-code’.
Mar 22 00:29:38 syncloud systemd[1]: Failed to start Snappy daemon.
Mar 22 00:29:38 syncloud systemd[1]: snapd.socket: Failed with result ‘service-start-limit-hit’.
Mar 22 00:29:38 syncloud platform.backend[600]: error snap/server.go:177 cannot connect {“error”: “Get "http://unix/v2/snaps\”: dial unix /var/run/snapd.socket: connect: connection refused"}
Mar 22 00:29:38 syncloud platform.backend[600]: github.com/syncloud/platform/snap.(*Server).httpGet
Mar 22 00:29:38 syncloud platform.backend[600]: /drone/src/backend/snap/server.go:177
Mar 22 00:29:38 syncloud platform.backend[600]: github.com/syncloud/platform/snap.(*Server).Snaps
Mar 22 00:29:38 syncloud platform.backend[600]: /drone/src/backend/snap/server.go:91
Mar 22 00:29:38 syncloud platform.backend[600]: github.com/syncloud/platform/snap.(*Server).InstalledUserApps
Mar 22 00:29:38 syncloud platform.backend[600]: /drone/src/backend/snap/server.go:61
Mar 22 00:29:38 syncloud platform.backend[600]: github.com/syncloud/platform/cron.(*BackupJob).Run
Mar 22 00:29:38 syncloud platform.backend[600]: /drone/src/backend/cron/backup_job.go:62
Mar 22 00:29:38 syncloud platform.backend[600]: github.com/syncloud/platform/cron.(*Cron).StartSingle
Mar 22 00:29:38 syncloud platform.backend[600]: /drone/src/backend/cron/runner.go:29
Mar 22 00:29:38 syncloud platform.backend[600]: github.com/syncloud/platform/cron.(*Cron).Start.func1
Mar 22 00:29:38 syncloud platform.backend[600]: /drone/src/backend/cron/runner.go:40
Mar 22 00:29:38 syncloud platform.backend[600]: 2023/03/22 00:29:38 Cron job failed: Get “http://unix/v2/snaps”: dial unix /var/run/snapd.socket: connect: connection refused

systemctl start snapd

(i got nothing)

I guess start did not actually start it.
Possible workaround is to clear installer state (losing info about installed apps)

mv /var/lib/snapd/state.json /var/lib/snapd/state.json.bak
systemctl restart snapd
systemctl status snapd
snap install platform

Then if it works you can install the rest of the apps from the web. If you have backups you can later restore them.

I did everything up to the step (systemctl status snapd) and tried quickly and the platform worked without the app as it told me. but when I did this step of reinstalling the platform (snap install platform) I can no longer open the platform in any way or the server. i just get (server error)

What is the output of this:

snap list

Can you open https://IP of the device in a browser?
Where IP is device IP.

snap list

No snaps are installed yet. Try “snap install hello-world”.