No they didnt. Yes i updated.
I asked them for help, the only thing that they could do was disabling the php error messages.
As i was saying, this DOESNT happen with clean installs.
When i delete everything on the webserver, clear the database and then install a fresh version of wordpress and then the theme, this doesnt happen.
This only happens when i update. So, of course, this cant be a fault from the hoster.
How can i get to this open_basedir thing?
Or is there a way there i can get all my content from the old install into a new install?