MWException: Detected bug in an extension! Hook wfSetupImageMap has invalid call signature; Parameter 1 to wfSetupImageMap() expected to be a reference, value given in /var/www/keeperrl.com/web/wiki/includes/Hooks.php:212 Stack trace: #0 /var/www/keeperrl.com/web/wiki/includes/GlobalFunctions.php(3877): Hooks::run('ParserFirstCall...', Array) #1 /var/www/keeperrl.com/web/wiki/includes/parser/Parser.php(275): wfRunHooks('ParserFirstCall...', Array) #2 /var/www/keeperrl.com/web/wiki/includes/StubObject.php(99): Parser->firstCallInit() #3 /var/www/keeperrl.com/web/wiki/includes/StubObject.php(119): StubObject->_call('firstCallInit', Array) #4 /var/www/keeperrl.com/web/wiki/includes/cache/MessageCache.php(996): StubObject->__call('firstCallInit', Array) #5 /var/www/keeperrl.com/web/wiki/includes/cache/MessageCache.php(974): MessageCache->getParser() #6 /var/www/keeperrl.com/web/wiki/includes/Message.php(854): MessageCache->transform('$1 - {{SITENAME...', true, Object(Language), Object(Title)) #7 /var/www/keeperrl.com/web/wiki/includes/Message.php(592): Message->transformText('$1 - {{SITENAME...') #8 /var/www/keeperrl.com/web/wiki/includes/Message.php(649): Message->toString() #9 /var/www/keeperrl.com/web/wiki/includes/OutputPage.php(851): Message->text() #10 /var/www/keeperrl.com/web/wiki/includes/OutputPage.php(894): OutputPage->setHTMLTitle(Object(Message)) #11 /var/www/keeperrl.com/web/wiki/includes/SpecialPage.php(609): OutputPage->setPageTitle('Categories') #12 /var/www/keeperrl.com/web/wiki/includes/specials/SpecialCategories.php(34): SpecialPage->setHeaders() #13 /var/www/keeperrl.com/web/wiki/includes/SpecialPage.php(631): SpecialCategories->execute(NULL) #14 /var/www/keeperrl.com/web/wiki/includes/SpecialPageFactory.php(488): SpecialPage->run(NULL) #15 /var/www/keeperrl.com/web/wiki/includes/Wiki.php(298): SpecialPageFactory::executePath(Object(Title), Object(RequestContext)) #16 /var/www/keeperrl.com/web/wiki/includes/Wiki.php(602): MediaWiki->performRequest() #17 /var/www/keeperrl.com/web/wiki/includes/Wiki.php(467): MediaWiki->main() #18 /var/www/keeperrl.com/web/wiki/index.php(49): MediaWiki->run() #19 {main}