Forum:Warning: Missing argument 2 for getAllAds()...

Whenever I open a page, in any Wikia, I get this error: Warning: Missing argument 2 for getAllAds, called in /usr/wikia/source/wiki16svn/skins/MonoBook.php on line 103 and defined in /usr/wikia/source/wiki16svn/extensions/AdServer.php on line 74

Is it a bug in the software, or a problem with my personal settings?