Thread:Project:Support desk/Special:BlockList (and possibly others) not displayed

Hello,

I´ve been running and administrating a Wiki for a Community since like 2 Months, and yesterday, I decided to upgrade it from 1.17 to 1.18 beta1. Everything seemed to be successful, however, as cautious as one can be, I´ve put up a site notice.

Today, I´ve received notification from another user, that, the Special:BlockList page is inaccessible (trying to access it will reply a blank page), and possibly other Special Pages might be affected as well.

As I am rather inexperienced with administrating a Wiki´s back-end (ie databases and stuff), I´ve already searched the FAQ and such stuff, but did find nothing useful, so I´m just going to ask this question here, as it seems to be a rather weird bug, since everything else seems to be working fine.

Anyone has any clues?