#0 /srv/mediawiki/php-1.35.0-wmf.30/extensions/Quiz/includes/Quiz.php(258): Parser->fetchTemplateAndTitle(NULL)
#1 [internal function]: Quiz->parseInclude(array)
#2 /srv/mediawiki/php-1.35.0-wmf.30/extensions/Quiz/includes/Quiz.php(245): preg_replace_callback(string, array, string)
#3 /srv/mediawiki/php-1.35.0-wmf.30/extensions/Quiz/includes/Quiz.php(205): Quiz->parseIncludes(string)
#4 /srv/mediawiki/php-1.35.0-wmf.30/extensions/Quiz/includes/QuizHooks.php(28): Quiz->parseQuiz(string)
#5 /srv/mediawiki/php-1.35.0-wmf.30/includes/parser/Parser.php(3858): QuizHooks::renderQuiz(string, array, Parser, PPFrame_Hash)
#6 /srv/mediawiki/php-1.35.0-wmf.30/includes/parser/PPFrame_Hash.php(327): Parser->extensionSubstitution(array, PPFrame_Hash)
#7 /srv/mediawiki/php-1.35.0-wmf.30/includes/parser/Parser.php(2866): PPFrame_Hash->expand(PPNode_Hash_Tree, integer)
#8 /srv/mediawiki/php-1.35.0-wmf.30/includes/parser/Parser.php(1552): Parser->replaceVariables(string)
#9 /srv/mediawiki/php-1.35.0-wmf.30/includes/parser/Parser.php(639): Parser->internalParse(string)
#10 /srv/mediawiki/php-1.35.0-wmf.30/includes/content/WikitextContent.php(368): Parser->parse(string, Title, ParserOptions, boolean, boolean, integer)
#11 /srv/mediawiki/php-1.35.0-wmf.30/includes/content/AbstractContent.php(565): WikitextContent->fillParserOutput(Title, integer, ParserOptions, boolean, ParserOutput)
#12 /srv/mediawiki/php-1.35.0-wmf.30/includes/Revision/RenderedRevision.php(267): AbstractContent->getParserOutput(Title, integer, ParserOptions, boolean)
#13 /srv/mediawiki/php-1.35.0-wmf.30/includes/Revision/RenderedRevision.php(236): MediaWiki\Revision\RenderedRevision->getSlotParserOutputUncached(WikitextContent, boolean)
#14 /srv/mediawiki/php-1.35.0-wmf.30/includes/Revision/RevisionRenderer.php(215): MediaWiki\Revision\RenderedRevision->getSlotParserOutput(string)
#15 /srv/mediawiki/php-1.35.0-wmf.30/includes/Revision/RevisionRenderer.php(152): MediaWiki\Revision\RevisionRenderer->combineSlotOutput(MediaWiki\Revision\RenderedRevision, array)
#16 [internal function]: MediaWiki\Revision\RevisionRenderer->MediaWiki\Revision\{closure}(MediaWiki\Revision\RenderedRevision, array)
#17 /srv/mediawiki/php-1.35.0-wmf.30/includes/Revision/RenderedRevision.php(198): call_user_func(Closure, MediaWiki\Revision\RenderedRevision, array)
#18 /srv/mediawiki/php-1.35.0-wmf.30/includes/poolcounter/PoolWorkArticleView.php(204): MediaWiki\Revision\RenderedRevision->getRevisionParserOutput()
#19 /srv/mediawiki/php-1.35.0-wmf.30/includes/poolcounter/PoolCounterWork.php(128): PoolWorkArticleView->doWork()
#20 /srv/mediawiki/php-1.35.0-wmf.30/includes/page/WikiPage.php(1273): PoolCounterWork->execute()
#21 /srv/mediawiki/php-1.35.0-wmf.30/includes/diff/DifferenceEngine.php(1040): WikiPage->getParserOutput(ParserOptions, integer)
#22 /srv/mediawiki/php-1.35.0-wmf.30/includes/diff/DifferenceEngine.php(997): DifferenceEngine->getParserOutput(WikiPage, Revision)
#23 /srv/mediawiki/php-1.35.0-wmf.30/includes/diff/DifferenceEngine.php(824): DifferenceEngine->renderNewRevision()
#24 /srv/mediawiki/php-1.35.0-wmf.30/includes/page/Article.php(963): DifferenceEngine->showDiffPage(boolean)
#25 /srv/mediawiki/php-1.35.0-wmf.30/includes/page/Article.php(644): Article->showDiffPage()
#26 /srv/mediawiki/php-1.35.0-wmf.30/includes/actions/ViewAction.php(66): Article->view()
#27 /srv/mediawiki/php-1.35.0-wmf.30/includes/MediaWiki.php(519): ViewAction->show()
#28 /srv/mediawiki/php-1.35.0-wmf.30/includes/MediaWiki.php(305): MediaWiki->performAction(Article, Title)
#29 /srv/mediawiki/php-1.35.0-wmf.30/includes/MediaWiki.php(973): MediaWiki->performRequest()
#30 /srv/mediawiki/php-1.35.0-wmf.30/includes/MediaWiki.php(535): MediaWiki->main()
#31 /srv/mediawiki/php-1.35.0-wmf.30/index.php(47): MediaWiki->run()
#32 /srv/mediawiki/w/index.php(3): require(string)
#33 {main}