I made the changes proposed by the github post.
However now I pass the system check but then the “next” button is missing
the only thing I could find about this was this post:
so I set all permissions again. However I don’t understand what is meant by resetting ownership to apache in this post since I don’t use apache. All my files are owner by the ftp user that I have from hetzner. It’s the same user that owns all files from the original suite installation that runs well (I obviously try to upgrade on a clone installation)