Update to ejabberd 14.12 - Registration temporarily disabled.
Dec. 23, 2014, 10:31 p.m. by matiUpdate: Registration works again. We had a few troubles these paste few days as mentioned on twitter and Facebook already. We took a reboot as a chance to upgrade ejabberd to version 14.12. Unfortunately, account registration is currently broken. We are currently working with ejabberd developers in resolving the issue, but given the christmas holidays, this may take a few days.