Buddyypress site issue


My site is having some issues and I cannot seem to find what the problem is. It was built using WPMU and BuddyPress.
I suspect that when the cometchat (chat software) technicians were trying to integrate it to my site, they screwed something up on the server and I cannot find what the problem is.
I’m willing to pay you if you can look at it and fix the issue as quickly as possible.
If you can, can you please give me an email I can send you my FTP details, as you know I cannot post them to the forum for all to see.