mostpopular_services_admin_form_submit_clear() does not exist.

I still have not been able to get this module to return any content for me even after going through all the steps in the troubleshooting documentation. I hope this problem has something to do with it although it likely does not. Which is kind of a bummer because as far as I can tell, this is the only module that can take Addthis.com data and organize nodes by it.

Anyway, when I press the "clear all cached values" button on the services page I receive a php error informing me that the function mostpopular_services_admin_form_submit_clear() does not exist.

In mostpopular.services.inc on line 141 a submit callback is set for $form['clear'] which references the above function. I looked for a mispelling or similar function that it could have been meant to reference but I found nothing.