User cp problem
 

Everybody on my forums can go to there usercp, but anything with profile.php isn't working.

I tried to edit/replace/delete my profile.php file, but it won't let me. The permissions on it is 0, I can't change that either.

This happened right after I installed conquest system on my forums. But I removed and disabled it, and it still did the same problem..

Any idea's on how to fix?