Fatal Error message RE: Allowed Memory

I uploaded the Ultimate Facebook Plugin and then I clicked on the Activate link.

Once clicking on the Activate link I received the following error message, which is making my entire /wp-admin/ area of the site inaccessible.

Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 4864 bytes) in /hermes/bosoraweb082/b1578/nf.ripsandcurvescom/public_html/rc-dev-wp/wp-content/plugins/wpmu-dev-facebook/lib/class_wdfb_admin_pages.php on line 412

Can you please provide some guidance on where to go from here.

Thanks.