Thread:Extension talk:BedellPenDragon/Error upon implementation

I get the following error when I try to implement this extension:

[1d116960] 2013-11-07 22:40:33: Fatal exception of type MWException

I am using: MediaWiki 	1.21.1 PHP 	5.3.24 (cgi-fcgi) MySQL 	5.1.70-community

Thanks,

Wade