Deprecated: MediaWiki\MassMessage\Content\MassMessageListContentHandler::getPageLanguage(): Implicitly marking parameter $content as nullable is deprecated, the explicit nullable type must be used instead in /homepages/8/d312538493/htdocs/X-Lexikon/extensions/MassMessage/includes/Content/MassMessageListContentHandler.php on line 184

Deprecated: MediaWiki\MassMessage\Content\MassMessageListContentHandler::getPageViewLanguage(): Implicitly marking parameter $content as nullable is deprecated, the explicit nullable type must be used instead in /homepages/8/d312538493/htdocs/X-Lexikon/extensions/MassMessage/includes/Content/MassMessageListContentHandler.php on line 190

Fatal error: Could not check compatibility between MediaWiki\MassMessage\Content\MassMessageListContentHandler::getPageLanguage(Title $title, ?Content $content = null) and MediaWiki\Content\CodeContentHandler::getPageLanguage(MediaWiki\Title\Title $title, ?MediaWiki\Content\Content $content = null), because class Title is not available in /homepages/8/d312538493/htdocs/X-Lexikon/extensions/MassMessage/includes/Content/MassMessageListContentHandler.php on line 184
Stack trace: #0 /homepages/8/d312538493/htdocs/X-Lexikon/includes/AutoLoader.php(278): require_once() #1 [internal function]: AutoLoader::autoload() #2 /homepages/8/d312538493/htdocs/X-Lexikon/vendor/wikimedia/object-factory/src/ObjectFactory.php(285): class_exists() #3 /homepages/8/d312538493/htdocs/X-Lexikon/vendor/wikimedia/object-factory/src/ObjectFactory.php(174): Wikimedia\ObjectFactory\ObjectFactory::validateSpec() #4 /homepages/8/d312538493/htdocs/X-Lexikon/vendor/wikimedia/object-factory/src/ObjectFactory.php(149): Wikimedia\ObjectFactory\ObjectFactory::getObjectFromSpec() #5 /homepages/8/d312538493/htdocs/X-Lexikon/includes/content/ContentHandlerFactory.php(211): Wikimedia\ObjectFactory\ObjectFactory->createObject() #6 /homepages/8/d312538493/htdocs/X-Lexikon/includes/content/ContentHandlerFactory.php(167): MediaWiki\Content\ContentHandlerFactory->createContentHandlerFromHandlerSpec() #7 /homepages/8/d312538493/htdocs/X-Lexikon/includes/content/ContentHandlerFactory.php(87): MediaWiki\Content\ContentHandlerFactory->createForModelID() #8 /homepages/8/d312538493/htdocs/X-Lexikon/includes/content/ContentHandlerFactory.php(143): MediaWiki\Content\ContentHandlerFactory->getContentHandler() #9 /homepages/8/d312538493/htdocs/X-Lexikon/includes/api/ApiParse.php(1211): MediaWiki\Content\ContentHandlerFactory->getAllContentFormats() #10 /homepages/8/d312538493/htdocs/X-Lexikon/includes/api/ApiBase.php(1908): MediaWiki\Api\ApiParse->getAllowedParams() #11 /homepages/8/d312538493/htdocs/X-Lexikon/includes/api/ApiHelp.php(473): MediaWiki\Api\ApiBase->getFinalParams() #12 /homepages/8/d312538493/htdocs/X-Lexikon/includes/api/ApiHelp.php(190): MediaWiki\Api\ApiHelp::getHelpInternal() #13 /homepages/8/d312538493/htdocs/X-Lexikon/includes/api/ApiHelp.php(80): MediaWiki\Api\ApiHelp::getHelp() #14 /homepages/8/d312538493/htdocs/X-Lexikon/includes/api/ApiMain.php(2011): MediaWiki\Api\ApiHelp->execute() #15 /homepages/8/d312538493/htdocs/X-Lexikon/includes/api/ApiMain.php(949): MediaWiki\Api\ApiMain->executeAction() #16 /homepages/8/d312538493/htdocs/X-Lexikon/includes/api/ApiMain.php(920): MediaWiki\Api\ApiMain->executeActionWithErrorHandling() #17 /homepages/8/d312538493/htdocs/X-Lexikon/includes/api/ApiEntryPoint.php(152): MediaWiki\Api\ApiMain->execute() #18 /homepages/8/d312538493/htdocs/X-Lexikon/includes/MediaWikiEntryPoint.php(202): MediaWiki\Api\ApiEntryPoint->execute() #19 /homepages/8/d312538493/htdocs/X-Lexikon/api.php(44): MediaWiki\MediaWikiEntryPoint->run() #20 {main}