Group Forum Feature : New Topic Box Closes all byitself.

Folks,

I just installed “Group Fourm” feature.

But when i click new Topic button, it shows the new topic box for 1 second then again slides up and closes that box.

What is going wrong?

Have a look:

Login Link:

http://transformz.com/wp-login.php

Test link:

http://transformz.com/groups/leadership-263780778/forum/

Username/password: testuser / testuser

Please help me resolving this. I have already spend 4 days finding a solution. The Theme developer has denied to help saying its Buddypress related issue so go and ask in WP forum.