MediaWiki internal error.

Original exception: [e54b74e9b6ba3d8e078b0aeb] /index.php?diff=next&oldid=46891&title=Haut_et_court_%28Multijoueur_de_Halo_%3A_Reach%29 Error: Call to undefined method MediaWiki\Skins\Vector\SkinVector22::getSearch()
Backtrace:
from /home/common/header.php(235)
#0 /home/wikihalo/www/skins/Vector/includes/SkinVector22.php(53): include()
#1 /home/wikihalo/www/vendor/wikimedia/object-factory/src/ObjectFactory.php(240): MediaWiki\Skins\Vector\SkinVector22->__construct()
#2 /home/wikihalo/www/vendor/wikimedia/object-factory/src/ObjectFactory.php(149): Wikimedia\ObjectFactory\ObjectFactory::getObjectFromSpec()
#3 /home/wikihalo/www/includes/skins/SkinFactory.php(137): Wikimedia\ObjectFactory\ObjectFactory->createObject()
#4 /home/wikihalo/www/includes/context/RequestContext.php(595): SkinFactory->makeSkin()
#5 /home/wikihalo/www/includes/OutputTransform/Stages/HandleSectionLinks.php(211): MediaWiki\Context\RequestContext->getSkin()
#6 /home/wikihalo/www/includes/OutputTransform/Stages/HandleSectionLinks.php(62): MediaWiki\OutputTransform\Stages\HandleSectionLinks->resolveSkin()
#7 /home/wikihalo/www/includes/OutputTransform/Stages/HandleSectionLinks.php(49): MediaWiki\OutputTransform\Stages\HandleSectionLinks->replaceHeadings()
#8 /home/wikihalo/www/includes/OutputTransform/ContentTextTransformStage.php(17): MediaWiki\OutputTransform\Stages\HandleSectionLinks->transformText()
#9 /home/wikihalo/www/includes/OutputTransform/OutputTransformPipeline.php(80): MediaWiki\OutputTransform\ContentTextTransformStage->transform()
#10 /home/wikihalo/www/includes/parser/ParserOutput.php(551): MediaWiki\OutputTransform\OutputTransformPipeline->run()
#11 /home/wikihalo/www/includes/parser/ParserOutput.php(473): MediaWiki\Parser\ParserOutput->runPipelineInternal()
#12 /home/wikihalo/www/includes/Message/Message.php(1509): MediaWiki\Parser\ParserOutput->getText()
#13 /home/wikihalo/www/includes/Message/Message.php(1073): MediaWiki\Message\Message->parseText()
#14 /home/wikihalo/www/includes/Message/Message.php(1114): MediaWiki\Message\Message->format()
#15 /home/wikihalo/www/includes/diff/DifferenceEngine.php(661): MediaWiki\Message\Message->parse()
#16 /home/wikihalo/www/includes/diff/DifferenceEngine.php(697): DifferenceEngine->getUserEditCount()
#17 /home/wikihalo/www/includes/diff/DifferenceEngine.php(899): DifferenceEngine->getUserMetaData()
#18 /home/wikihalo/www/includes/page/Article.php(1071): DifferenceEngine->showDiffPage()
#19 /home/wikihalo/www/includes/page/Article.php(485): Article->showDiffPage()
#20 /home/wikihalo/www/includes/actions/ViewAction.php(78): Article->view()
#21 /home/wikihalo/www/includes/actions/ActionEntryPoint.php(733): ViewAction->show()
#22 /home/wikihalo/www/includes/actions/ActionEntryPoint.php(510): MediaWiki\Actions\ActionEntryPoint->performAction()
#23 /home/wikihalo/www/includes/actions/ActionEntryPoint.php(146): MediaWiki\Actions\ActionEntryPoint->performRequest()
#24 /home/wikihalo/www/includes/MediaWikiEntryPoint.php(200): MediaWiki\Actions\ActionEntryPoint->execute()
#25 /home/wikihalo/www/index.php(58): MediaWiki\MediaWikiEntryPoint->run()
#26 {main}

Exception caught inside exception handler: [e54b74e9b6ba3d8e078b0aeb] /index.php?diff=next&oldid=46891&title=Haut_et_court_%28Multijoueur_de_Halo_%3A_Reach%29 Error: Call to undefined method MediaWiki\Skins\Vector\SkinVector22::getSearch()
Backtrace:
from /home/common/header.php(235)
#0 /home/wikihalo/www/skins/Vector/includes/SkinVector22.php(53): include()
#1 /home/wikihalo/www/vendor/wikimedia/object-factory/src/ObjectFactory.php(240): MediaWiki\Skins\Vector\SkinVector22->__construct()
#2 /home/wikihalo/www/vendor/wikimedia/object-factory/src/ObjectFactory.php(149): Wikimedia\ObjectFactory\ObjectFactory::getObjectFromSpec()
#3 /home/wikihalo/www/includes/skins/SkinFactory.php(137): Wikimedia\ObjectFactory\ObjectFactory->createObject()
#4 /home/wikihalo/www/includes/context/RequestContext.php(595): SkinFactory->makeSkin()
#5 /home/wikihalo/www/includes/context/ContextSource.php(198): MediaWiki\Context\RequestContext->getSkin()
#6 /home/wikihalo/www/includes/Output/OutputPage.php(3170): MediaWiki\Context\ContextSource->getSkin()
#7 /home/wikihalo/www/includes/exception/MWExceptionRenderer.php(190): MediaWiki\Output\OutputPage->output()
#8 /home/wikihalo/www/includes/exception/MWExceptionRenderer.php(109): MWExceptionRenderer::reportHTML()
#9 /home/wikihalo/www/includes/exception/MWExceptionHandler.php(135): MWExceptionRenderer::output()
#10 /home/wikihalo/www/includes/exception/MWExceptionHandler.php(239): MWExceptionHandler::report()
#11 /home/wikihalo/www/includes/MediaWikiEntryPoint.php(222): MWExceptionHandler::handleException()
#12 /home/wikihalo/www/includes/actions/ActionEntryPoint.php(82): MediaWiki\MediaWikiEntryPoint->handleTopLevelError()
#13 /home/wikihalo/www/includes/MediaWikiEntryPoint.php(206): MediaWiki\Actions\ActionEntryPoint->handleTopLevelError()
#14 /home/wikihalo/www/index.php(58): MediaWiki\MediaWikiEntryPoint->run()
#15 {main}