Facebook seems to be having issues with their Connect application, so you may not be able to login with Facebook.  Vampii is working on this issue and hopefully should have a resolution soon.  In the meantime, you can login with the username you created during registration.  If you don't remember your username simply click the "Forgot username" link.  Same goes for password.  Oh, and ignore any popup errors, we're going to fix them soon!  We apologize for this inconvenience.