[Plugin: Simple Twitter Connect] Issues Connecting

Whenever I click the twitter login for the plugin or the comments I get a 500 error. “error retrieving http://fistfulofgeek.com/?stc_oauth_start=1&stcaction=comment&loc=http%3A%2F%2Ffistfulofgeek.com%2Funcategorized%2Ftop-10-comic-book-villains%2F&type=authenticate”

thanks!

http://wordpress.org/extend/plugins/simple-twitter-connect/