That’s actually the part of the problem. I have checked all the various logs and found no related errors. I just
hhhmmmm… I seem to have fixed the “invalid license” issue… It was a permissions issue “sudo chown -R www-data”
The current issue is that “automatic updates” seems to have vanished.
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(and there is no way to enable it)
Was present earlier https://i.imgur.com/LyxTJNr.png
In any case, after I fixed the permissions issue, the license was recognized, and I was able to update to the latest version.
Any suggestion about why automatic updates has vanshed? thx (obviously, not an urgent issue)