Ultimate Facebook Override Blog Option White Page Hang

In Ultimate Facebook on the network admin menu side. When I use the ‘Network Options’ tab and check the ‘override blog options’ uncheck ‘preserve subblog api settings’ and uncheck ‘do not allow per blog settings’. (basically Im trying to reset all the api settings I’ve typed into sub blogs and use the site wide settings i have set for my fabeook app on the network admin panel..

But when I select those boxes and hit save, It just hangs with a blank white screen with the url ‘http://edgenethost.com/wp-admin/network/settings.php ‘…

any advice?