Hi,
sorry that I didn't mention it, but of course I followed the installation instructions. I am also sure that I have the required permissions, since I want to install it on my own web server.
The database works for all other hosted applications, and it has worked for older versions of OSClass, too. Of course I use a new database for the new installation, so that no data is being messed up.
Referring to the installation instructions, the error occurs between step 4.3 and 4.4.
// Joe