Forum:A user is unable to register at my Warhawk wiki...why?

A user is trying to register at the Warhawk wiki, http://warhawk.wikia.com, but they are unable to, they keep getting the message "We are sorry, we are unable to register you at this time". They have tried on different days. What is wrong? The user can be found at http://warhawk.wikia.com/wiki/User_talk:99.252.106.94 --Jason C.K. 17:07, 29 January 2009 (UTC) (admin of Warhawk wiki)