Help: Follow Me fatal error

I went into Freepbx (Version 2.2.0beta1) this morning to edit a follow me setting and received the following error after clicking on the extension to modify.

Fatal error: Call to undefined function: fatal() in /var/www/html/admin/modules/findmefollow/functions.inc.php on line 251

How do I fix this? The follow me function appears to be working (calls are being forwarded as they were, I just can’t change the settings in freepbx).
TIA