MediaWiki internal error.

Original exception: [ZYWqVgCUUkcwrKiMwLxUpAAAAM0] /dizionario/Coce Error: Interface "MobileFrontend\Hooks\MobileFrontendFeaturesRegistrationHook" not found
Backtrace:
from /home/wikidonca/public_html/skins/MinervaNeue/includes/MobileFrontendHooks.php(18)
#0 /home/wikidonca/public_html/includes/AutoLoader.php(221): require()
#1 /home/wikidonca/public_html/vendor/wikimedia/object-factory/src/ObjectFactory.php(240): AutoLoader::autoload()
#2 /home/wikidonca/public_html/vendor/wikimedia/object-factory/src/ObjectFactory.php(149): Wikimedia\ObjectFactory\ObjectFactory::getObjectFromSpec()
#3 /home/wikidonca/public_html/includes/HookContainer/HookContainer.php(258): Wikimedia\ObjectFactory\ObjectFactory->createObject()
#4 /home/wikidonca/public_html/includes/HookContainer/HookContainer.php(350): MediaWiki\HookContainer\HookContainer->makeExtensionHandlerCallback()
#5 /home/wikidonca/public_html/includes/HookContainer/HookContainer.php(525): MediaWiki\HookContainer\HookContainer->normalizeHandler()
#6 /home/wikidonca/public_html/includes/HookContainer/HookContainer.php(148): MediaWiki\HookContainer\HookContainer->getHandlers()
#7 /home/wikidonca/public_html/extensions/MobileFrontend/includes/Features/FeaturesManager.php(43): MediaWiki\HookContainer\HookContainer->run()
#8 /home/wikidonca/public_html/extensions/MobileFrontend/includes/ServiceWiring.php(51): MobileFrontend\Features\FeaturesManager->useHookToRegisterExtensionOrSkinFeatures()
#9 /home/wikidonca/public_html/vendor/wikimedia/services/src/ServiceContainer.php(447): Wikimedia\Services\ServiceContainer::{closure}()
#10 /home/wikidonca/public_html/vendor/wikimedia/services/src/ServiceContainer.php(411): Wikimedia\Services\ServiceContainer->createService()
#11 /home/wikidonca/public_html/includes/MediaWikiServices.php(351): Wikimedia\Services\ServiceContainer->getService()
#12 /home/wikidonca/public_html/extensions/MobileFrontend/includes/MobileFrontendHooks.php(999): MediaWiki\MediaWikiServices->getService()
#13 /home/wikidonca/public_html/includes/HookContainer/HookContainer.php(161): MobileFrontendHooks::onOutputPageParserOutput()
#14 /home/wikidonca/public_html/includes/HookContainer/HookRunner.php(2729): MediaWiki\HookContainer\HookContainer->run()
#15 /home/wikidonca/public_html/includes/Output/OutputPage.php(2276): MediaWiki\HookContainer\HookRunner->onOutputPageParserOutput()
#16 /home/wikidonca/public_html/includes/Output/OutputPage.php(2353): MediaWiki\Output\OutputPage->addParserOutputMetadata()
#17 /home/wikidonca/public_html/includes/page/Article.php(880): MediaWiki\Output\OutputPage->addParserOutput()
#18 /home/wikidonca/public_html/includes/page/Article.php(783): Article->doOutputFromRenderStatus()
#19 /home/wikidonca/public_html/includes/page/Article.php(550): Article->generateContentOutput()
#20 /home/wikidonca/public_html/includes/actions/ViewAction.php(78): Article->view()
#21 /home/wikidonca/public_html/includes/MediaWiki.php(583): ViewAction->show()
#22 /home/wikidonca/public_html/includes/MediaWiki.php(363): MediaWiki->performAction()
#23 /home/wikidonca/public_html/includes/MediaWiki.php(960): MediaWiki->performRequest()
#24 /home/wikidonca/public_html/includes/MediaWiki.php(613): MediaWiki->main()
#25 /home/wikidonca/public_html/index.php(50): MediaWiki->run()
#26 /home/wikidonca/public_html/index.php(46): wfIndexMain()
#27 {main}

Exception caught inside exception handler: [ZYWqVgCUUkcwrKiMwLxUpAAAAM0] /dizionario/Coce Error: Interface "MobileFrontend\Hooks\MobileFrontendFeaturesRegistrationHook" not found
Backtrace:
from /home/wikidonca/public_html/skins/MinervaNeue/includes/MobileFrontendHooks.php(18)
#0 /home/wikidonca/public_html/includes/AutoLoader.php(221): require()
#1 /home/wikidonca/public_html/vendor/wikimedia/object-factory/src/ObjectFactory.php(240): AutoLoader::autoload()
#2 /home/wikidonca/public_html/vendor/wikimedia/object-factory/src/ObjectFactory.php(149): Wikimedia\ObjectFactory\ObjectFactory::getObjectFromSpec()
#3 /home/wikidonca/public_html/includes/HookContainer/HookContainer.php(258): Wikimedia\ObjectFactory\ObjectFactory->createObject()
#4 /home/wikidonca/public_html/includes/HookContainer/HookContainer.php(350): MediaWiki\HookContainer\HookContainer->makeExtensionHandlerCallback()
#5 /home/wikidonca/public_html/includes/HookContainer/HookContainer.php(525): MediaWiki\HookContainer\HookContainer->normalizeHandler()
#6 /home/wikidonca/public_html/includes/HookContainer/HookContainer.php(148): MediaWiki\HookContainer\HookContainer->getHandlers()
#7 /home/wikidonca/public_html/extensions/MobileFrontend/includes/Features/FeaturesManager.php(43): MediaWiki\HookContainer\HookContainer->run()
#8 /home/wikidonca/public_html/extensions/MobileFrontend/includes/ServiceWiring.php(51): MobileFrontend\Features\FeaturesManager->useHookToRegisterExtensionOrSkinFeatures()
#9 /home/wikidonca/public_html/vendor/wikimedia/services/src/ServiceContainer.php(447): Wikimedia\Services\ServiceContainer::{closure}()
#10 /home/wikidonca/public_html/vendor/wikimedia/services/src/ServiceContainer.php(411): Wikimedia\Services\ServiceContainer->createService()
#11 /home/wikidonca/public_html/includes/MediaWikiServices.php(351): Wikimedia\Services\ServiceContainer->getService()
#12 /home/wikidonca/public_html/extensions/MobileFrontend/includes/MobileFrontendHooks.php(608): MediaWiki\MediaWikiServices->getService()
#13 /home/wikidonca/public_html/includes/HookContainer/HookContainer.php(161): MobileFrontendHooks::onSpecialPageInitList()
#14 /home/wikidonca/public_html/includes/HookContainer/HookRunner.php(3731): MediaWiki\HookContainer\HookContainer->run()
#15 /home/wikidonca/public_html/includes/specialpage/SpecialPageFactory.php(1358): MediaWiki\HookContainer\HookRunner->onSpecialPage_initList()
#16 /home/wikidonca/public_html/includes/specialpage/SpecialPageFactory.php(1373): MediaWiki\SpecialPage\SpecialPageFactory->getPageList()
#17 /home/wikidonca/public_html/includes/specialpage/SpecialPageFactory.php(1717): MediaWiki\SpecialPage\SpecialPageFactory->getAliasList()
#18 /home/wikidonca/public_html/includes/specialpage/SpecialPage.php(170): MediaWiki\SpecialPage\SpecialPageFactory->getLocalNameFor()
#19 /home/wikidonca/public_html/includes/specialpage/SpecialPage.php(155): MediaWiki\SpecialPage\SpecialPage::getTitleValueFor()
#20 /home/wikidonca/public_html/includes/specialpage/SpecialPage.php(131): MediaWiki\SpecialPage\SpecialPage::getTitleFor()
#21 /home/wikidonca/public_html/includes/skins/components/SkinComponentRegistry.php(101): MediaWiki\SpecialPage\SpecialPage::newSearchPage()
#22 /home/wikidonca/public_html/includes/skins/components/SkinComponentRegistry.php(129): MediaWiki\Skin\SkinComponentRegistry->registerComponent()
#23 /home/wikidonca/public_html/includes/skins/components/SkinComponentRegistry.php(70): MediaWiki\Skin\SkinComponentRegistry->registerComponents()
#24 /home/wikidonca/public_html/includes/skins/Skin.php(197): MediaWiki\Skin\SkinComponentRegistry->getComponents()
#25 /home/wikidonca/public_html/includes/skins/SkinTemplate.php(181): Skin->getTemplateData()
#26 /home/wikidonca/public_html/includes/skins/SkinMustache.php(125): SkinTemplate->getTemplateData()
#27 /home/wikidonca/public_html/skins/Vector/includes/SkinVector22.php(329): SkinMustache->getTemplateData()
#28 /home/wikidonca/public_html/includes/skins/SkinMustache.php(92): MediaWiki\Skins\Vector\SkinVector22->getTemplateData()
#29 /home/wikidonca/public_html/includes/skins/SkinTemplate.php(174): SkinMustache->generateHTML()
#30 /home/wikidonca/public_html/includes/Output/OutputPage.php(2947): SkinTemplate->outputPage()
#31 /home/wikidonca/public_html/includes/exception/MWExceptionRenderer.php(188): MediaWiki\Output\OutputPage->output()
#32 /home/wikidonca/public_html/includes/exception/MWExceptionRenderer.php(105): MWExceptionRenderer::reportHTML()
#33 /home/wikidonca/public_html/includes/exception/MWExceptionHandler.php(134): MWExceptionRenderer::output()
#34 /home/wikidonca/public_html/includes/exception/MWExceptionHandler.php(251): MWExceptionHandler::report()
#35 /home/wikidonca/public_html/includes/MediaWiki.php(635): MWExceptionHandler::handleException()
#36 /home/wikidonca/public_html/index.php(50): MediaWiki->run()
#37 /home/wikidonca/public_html/index.php(46): wfIndexMain()
#38 {main}