admin_ Hi xtgem admin, please fix this error.

People can't register directly to our forum page ( xtforum ) with mobile device and also on PC. People also can't register with email or Facebook signup.
** Clear cookies also cant solve this error.
( please see the screenshoot )

To join our forum, they must register to Xtgem homepage first, and then join to our forum ( xtforum ).
What happen with Xtgem?? I still love this site especially the forum builder.

** Before this error, people can easily register to our forum page directly, both with email or Facebook signup.