Internal error

[Zvu3YtywNn059x2cXdCcUAAAABM] /wiki/Eng:Finding_the_Mean_of_Numbers/translate Error: Failed opening required '/home/scratchwiki/wikis/test/w/extensions/ParserFunctions/includes//ExprParser.php' (include_path='/home/scratchwiki/wikis/test/w/vendor/pear/console_getopt:/home/scratchwiki/wikis/test/w/vendor/pear/mail:/home/scratchwiki/wikis/test/w/vendor/pear/mail_mime:/home/scratchwiki/wikis/test/w/vendor/pear/net_smtp:/home/scratchwiki/wikis/test/w/vendor/pear/net_socket:/home/scratchwiki/wikis/test/w/vendor/pear/net_url2:/home/scratchwiki/wikis/test/w/vendor/pear/pear-core-minimal/src:/home/scratchwiki/wikis/test/w/vendor/pear/pear_exception:.:/opt/alt/php80/usr/share/pear:/opt/alt/php80/usr/share/php:/usr/share/pear:/usr/share/php')

Backtrace:

from /home/scratchwiki/wikis/test/w/includes/AutoLoader.php(244)
#0 /home/scratchwiki/wikis/extensions/1.39/ParserFunctions/includes/ParserFunctions.php(54): AutoLoader::autoload()
#1 /home/scratchwiki/wikis/extensions/1.39/ParserFunctions/includes/ParserFunctions.php(70): MediaWiki\Extension\ParserFunctions\ParserFunctions::getExprParser()
#2 /home/scratchwiki/wikis/test/w/includes/parser/Parser.php(3439): MediaWiki\Extension\ParserFunctions\ParserFunctions::expr()
#3 /home/scratchwiki/wikis/test/w/includes/parser/Parser.php(3124): Parser->callParserFunction()
#4 /home/scratchwiki/wikis/test/w/includes/parser/PPFrame_Hash.php(275): Parser->braceSubstitution()
#5 /home/scratchwiki/wikis/test/w/includes/parser/Parser.php(3032): PPFrame_Hash->expand()
#6 /home/scratchwiki/wikis/test/w/includes/parser/PPFrame_Hash.php(275): Parser->braceSubstitution()
#7 /home/scratchwiki/wikis/test/w/includes/parser/Parser.php(3315): PPFrame_Hash->expand()
#8 /home/scratchwiki/wikis/test/w/includes/parser/PPFrame_Hash.php(275): Parser->braceSubstitution()
#9 /home/scratchwiki/wikis/test/w/includes/parser/Parser.php(2953): PPFrame_Hash->expand()
#10 /home/scratchwiki/wikis/test/w/includes/parser/Parser.php(1609): Parser->replaceVariables()
#11 /home/scratchwiki/wikis/test/w/includes/parser/Parser.php(723): Parser->internalParse()
#12 /home/scratchwiki/wikis/test/w/includes/content/WikitextContentHandler.php(301): Parser->parse()
#13 /home/scratchwiki/wikis/test/w/includes/content/ContentHandler.php(1721): WikitextContentHandler->fillParserOutput()
#14 /home/scratchwiki/wikis/test/w/includes/content/Renderer/ContentRenderer.php(47): ContentHandler->getParserOutput()
#15 /home/scratchwiki/wikis/test/w/includes/Revision/RenderedRevision.php(266): MediaWiki\Content\Renderer\ContentRenderer->getParserOutput()
#16 /home/scratchwiki/wikis/test/w/includes/Revision/RenderedRevision.php(237): MediaWiki\Revision\RenderedRevision->getSlotParserOutputUncached()
#17 /home/scratchwiki/wikis/test/w/includes/Revision/RevisionRenderer.php(221): MediaWiki\Revision\RenderedRevision->getSlotParserOutput()
#18 /home/scratchwiki/wikis/test/w/includes/Revision/RevisionRenderer.php(158): MediaWiki\Revision\RevisionRenderer->combineSlotOutput()
#19 [internal function]: MediaWiki\Revision\RevisionRenderer->MediaWiki\Revision\{closure}()
#20 /home/scratchwiki/wikis/test/w/includes/Revision/RenderedRevision.php(199): call_user_func()
#21 /home/scratchwiki/wikis/test/w/includes/poolcounter/PoolWorkArticleView.php(91): MediaWiki\Revision\RenderedRevision->getRevisionParserOutput()
#22 /home/scratchwiki/wikis/test/w/includes/poolcounter/PoolWorkArticleViewCurrent.php(97): PoolWorkArticleView->renderRevision()
#23 /home/scratchwiki/wikis/test/w/includes/poolcounter/PoolCounterWork.php(162): PoolWorkArticleViewCurrent->doWork()
#24 /home/scratchwiki/wikis/test/w/includes/page/ParserOutputAccess.php(299): PoolCounterWork->execute()
#25 /home/scratchwiki/wikis/test/w/includes/page/Article.php(714): MediaWiki\Page\ParserOutputAccess->getParserOutput()
#26 /home/scratchwiki/wikis/test/w/includes/page/Article.php(528): Article->generateContentOutput()
#27 /home/scratchwiki/wikis/test/w/includes/actions/ViewAction.php(78): Article->view()
#28 /home/scratchwiki/wikis/test/w/includes/MediaWiki.php(542): ViewAction->show()
#29 /home/scratchwiki/wikis/test/w/includes/MediaWiki.php(322): MediaWiki->performAction()
#30 /home/scratchwiki/wikis/test/w/includes/MediaWiki.php(904): MediaWiki->performRequest()
#31 /home/scratchwiki/wikis/test/w/includes/MediaWiki.php(562): MediaWiki->main()
#32 /home/scratchwiki/wikis/test/w/index.php(50): MediaWiki->run()
#33 /home/scratchwiki/wikis/test/w/index.php(46): wfIndexMain()
#34 {main}