Error opening journal: Read-only file system

I’m also interested in this topic, seems to be same that problem I created few days ago.
I had also webserver in LXC, but the pages were only for my testing purposes, so only access was from me, bots, and few people from this forum as I hosted some pics that are displayed here.

https://forum.test.turris.cz/t/updater-selhal-failed-to-provide-the-approval-report-read-only-file-system-3-7-1/4835