Standard Nextcloud LAMP setup hangs every second day


I have a standard LAMP-server nextcloud setup which looks and works nice but unfortunately the nextcloud “hangs” every plus/minus second day :frowning:

Restarting the mariadb solves the issue however I have no idea WHY this happens.

Does anybody have the same behaviour or any idea why this could happen?

I would be thankfull for any suggestions or hints - thank you in advance…

Have you checked any of the logs?

The only meesage I do find in the logs is the following:

Nextcloud kernel: [1970507.113859] audit: type=1400 audit(1669619341.122:2710): apparmor=“DENIED” operation=“mount” info=“failed perms check” error=-13 profile=“lxc-111_</var/lib/lxc>” name=“/run/systemd/unit-root/” pid=3066393 comm=“(ionclean)” srcname=“/” flags=“rw, rbind”

Any idea a) what it means and b) how I can fix it?