I am upgrade mediawiki 1.32 to 1.33.1
I met the this message. What should I do? Thank a lot !!
[918f034b6cf56395974829e0] /mediawiki/index.php?title=%EC%86%8C%EC%9D%8C%EC%88%9C%EC%9C%A0%EC%B0%A9 Error from line 141 of /volume1/web/mediawiki/extensions/Scribunto/common/Hooks.php: Class 'UtfNormal' not found
Backtrace:
#0 /volume1/web/mediawiki/includes/parser/Parser.php(3528): ScribuntoHooks::invokeHook(Parser, PPTemplateFrame_DOM, array)
#1 /volume1/web/mediawiki/includes/parser/Parser.php(3235): Parser->callParserFunction(PPTemplateFrame_DOM, string, array)
#2 /volume1/web/mediawiki/includes/parser/Preprocessor_DOM.php(1285): Parser->braceSubstitution(array, PPTemplateFrame_DOM)
#3 /volume1/web/mediawiki/extensions/ParserFunctions/includes/ParserFunctions.php(116): PPFrame_DOM->expand(DOMElement)
#4 /volume1/web/mediawiki/includes/parser/Parser.php(3528): MediaWiki\Extensions\ParserFunctions\ParserFunctions::ifObj(Parser, PPTemplateFrame_DOM, array)
#5 /volume1/web/mediawiki/includes/parser/Parser.php(3235): Parser->callParserFunction(PPTemplateFrame_DOM, string, array)
#6 /volume1/web/mediawiki/includes/parser/Preprocessor_DOM.php(1285): Parser->braceSubstitution(array, PPTemplateFrame_DOM)
#7 /volume1/web/mediawiki/includes/parser/Parser.php(3409): PPFrame_DOM->expand(DOMElement)
#8 /volume1/web/mediawiki/includes/parser/Preprocessor_DOM.php(1285): Parser->braceSubstitution(array, PPTemplateFrame_DOM)
#9 /volume1/web/mediawiki/includes/parser/Parser.php(3409): PPFrame_DOM->expand(DOMElement)
#10 /volume1/web/mediawiki/includes/parser/Preprocessor_DOM.php(1285): Parser->braceSubstitution(array, PPFrame_DOM)
#11 /volume1/web/mediawiki/includes/parser/Parser.php(3049): PPFrame_DOM->expand(DOMElement, integer)
#12 /volume1/web/mediawiki/includes/parser/Parser.php(1359): Parser->replaceVariables(string)
#13 /volume1/web/mediawiki/includes/parser/Parser.php(491): Parser->internalParse(string)
#14 /volume1/web/mediawiki/includes/content/WikitextContent.php(369): Parser->parse(string, Title, ParserOptions, boolean, boolean, integer)
#15 /volume1/web/mediawiki/includes/content/AbstractContent.php(555): WikitextContent->fillParserOutput(Title, integer, ParserOptions, boolean, ParserOutput)
#16 /volume1/web/mediawiki/includes/Revision/RenderedRevision.php(265): AbstractContent->getParserOutput(Title, integer, ParserOptions, boolean)
#17 /volume1/web/mediawiki/includes/Revision/RenderedRevision.php(234): MediaWiki\Revision\RenderedRevision->getSlotParserOutputUncached(WikitextContent, boolean)
#18 /volume1/web/mediawiki/includes/Revision/RevisionRenderer.php(193): MediaWiki\Revision\RenderedRevision->getSlotParserOutput(string)
#19 /volume1/web/mediawiki/includes/Revision/RevisionRenderer.php(142): MediaWiki\Revision\RevisionRenderer->combineSlotOutput(MediaWiki\Revision\RenderedRevision, array)
#20 [internal function]: MediaWiki\Revision\RevisionRenderer->MediaWiki\Revision\{closure}(MediaWiki\Revision\RenderedRevision, array)
#21 /volume1/web/mediawiki/includes/Revision/RenderedRevision.php(197): call_user_func(Closure, MediaWiki\Revision\RenderedRevision, array)
#22 /volume1/web/mediawiki/includes/poolcounter/PoolWorkArticleView.php(194): MediaWiki\Revision\RenderedRevision->getRevisionParserOutput()
#23 /volume1/web/mediawiki/includes/poolcounter/PoolCounterWork.php(123): PoolWorkArticleView->doWork()
#24 /volume1/web/mediawiki/includes/page/Article.php(773): PoolCounterWork->execute()
#25 /volume1/web/mediawiki/includes/actions/ViewAction.php(68): Article->view()
#26 /volume1/web/mediawiki/includes/MediaWiki.php(499): ViewAction->show()
#27 /volume1/web/mediawiki/includes/MediaWiki.php(294): MediaWiki->performAction(Article, Title)
#28 /volume1/web/mediawiki/includes/MediaWiki.php(865): MediaWiki->performRequest()
#29 /volume1/web/mediawiki/includes/MediaWiki.php(515): MediaWiki->main()
#30 /volume1/web/mediawiki/index.php(42): MediaWiki->run()
#31 {main}