Hi,
as noone replied, I assume that the best chance is to backup, unistall, install, restore.
Or does anybody have an idea what I could try before doing that?
Thanks
There is not enough information to debug your problem.
If this problem were my problem, the first thing I would ask myself is, “is this a generic xwiki on ubuntu 22 problem, or is this a problem with my xwiki in particular?”
To answer that, I would start with a clean ubuntu 22 installation, and do a clean install of xwiki. If that works without issue, then I’d suspect there is something wrong with my xwiki installation in particular.
The next question I would ask is “when was the last time my xwiki was working properly?”, followed by “what are all the changes I made between then and when it first broke?”
From there I would make a plan on how to proceed.
I’d previously taken a wiki and upgraded it through multiple major versions without reading ANY of the release notes, and didn’t make any of the necessary recommended changes. Eventually my xwiki broke horribly. To solve my problem, I did the above steps. I ended up restoring the last known good version, then reading all the upgrade notes from several versions back and made every necessary change.
That fixed most of my problems, but not all. It ended up that I also had to make a clean installation of the same version my current xwiki was and then do a file by file comparison to remove outdated files that were causing problems with my installation.
It looks like I was successful, because I haven’t had any major problems since that time.