Warning: Cannot instantiate special page DeleteBatch: bad spec! [Called from SpecialPageFactory::getPage in /usr/home/lashtal/web/public_lashtal/w/includes/specialpage/SpecialPageFactory.php at line 419] in /usr/home/lashtal/web/public_lashtal/w/includes/debug/MWDebug.php on line 300

Fatal error: Call to undefined method SpecialPage::SpecialPage() in /usr/home/lashtal/web/public_lashtal/w/extensions/CategoryTree/CategoryTreePage.php on line 27