[Videx]

So, a non-technical explanation: It's highly unlikely that those hourly attacks are anything more than bots trying to find an easy way in. Don't worry - as long as you keep vb and the server updated they really aren't too much of a worry.

I don't think "check your access rights" is the same as saying "set all your file permissions to allow yourself to be hacked". In general, vb files should all be 644 and directories 755.

I missed the part where you explained what error(s) you're getting, and where you gave us a link and test login (if required) to look at things. Have you already simply asked your tech people (your host's tech support?)? It's very common for them to set security in such a way that you can't run your own files. When that happens they can set exceptions. If you ask them nicely.