[EDUTz]

When you set up the page, did you used another link in browser ? Usualy most of the webscripts that are installed with an installer package, tends to remember the url used when are installed.
Try to reinstall using the link you want to use at the end.

Example of wrong install:
when installing: domain.com/bans
when using: bans.domain.com

That's just an idea, i don't know if this is actualy the solution for you. Please post here if it solves the problem.

PS: in admin panel, webpanel settings -> logs .. paste the errors from there ..