Accessing pages like https://commons.wikimedia.org/wiki/Special:EntityData/M343610.n3 causes an fatal error. This apperently happens well over a 100 times per day, see Logstash.
PHP Fatal Error: Argument 1 passed to Wikibase\Rdf\RdfBuilder::addEntityRedirect() must be an instance of Wikibase\DataModel\Entity\EntityId, null given #0 /srv/mediawiki/php-1.34.0-wmf.5/extensions/Wikibase/repo/includes/LinkedData/EntityDataSerializationService.php(268): NO_FUNCTION_GIVEN() #1 /srv/mediawiki/php-1.34.0-wmf.5/extensions/Wikibase/repo/includes/LinkedData/EntityDataSerializationService.php(244): Wikibase\Repo\LinkedData\EntityDataSerializationService->addIncomingRedirects(Wikibase\MediaInfo\DataModel\MediaInfoId, NULL, array, Wikibase\Rdf\RdfBuilder) #2 /srv/mediawiki/php-1.34.0-wmf.5/extensions/Wikibase/repo/includes/LinkedData/EntityDataSerializationService.php(182): Wikibase\Repo\LinkedData\EntityDataSerializationService->rdfSerialize(Wikibase\Lib\Store\EntityRevision, NULL, array, Wikibase\Rdf\RdfBuilder, NULL) #3 /srv/mediawiki/php-1.34.0-wmf.5/extensions/Wikibase/repo/includes/LinkedData/EntityDataRequestHandler.php(516): Wikibase\Repo\LinkedData\EntityDataSerializationService->getSerializedData(string, Wikibase\Lib\Store\EntityRevision, NULL, array, NULL) #4 /srv/mediawiki/php-1.34.0-wmf.5/extensions/Wikibase/repo/includes/LinkedData/EntityDataRequestHandler.php(261): Wikibase\Repo\LinkedData\EntityDataRequestHandler->showData(WebRequest, OutputPage, string, Wikibase\MediaInfo\DataModel\MediaInfoId, integer) #5 /srv/mediawiki/php-1.34.0-wmf.5/extensions/Wikibase/repo/includes/Specials/SpecialEntityData.php(156): Wikibase\Repo\LinkedData\EntityDataRequestHandler->handleRequest(string, WebRequest, OutputPage) #6 /srv/mediawiki/php-1.34.0-wmf.5/includes/specialpage/SpecialPage.php(570): Wikibase\Repo\Specials\SpecialEntityData->execute(string) #7 /srv/mediawiki/php-1.34.0-wmf.5/includes/specialpage/SpecialPageFactory.php(575): SpecialPage->run(string) #8 /srv/mediawiki/php-1.34.0-wmf.5/includes/MediaWiki.php(288): MediaWiki\Special\SpecialPageFactory->executePath(Title, RequestContext) #9 /srv/mediawiki/php-1.34.0-wmf.5/includes/MediaWiki.php(865): MediaWiki->performRequest() #10 /srv/mediawiki/php-1.34.0-wmf.5/includes/MediaWiki.php(515): MediaWiki->main() #11 /srv/mediawiki/php-1.34.0-wmf.5/index.php(42): MediaWiki->run() #12 /srv/mediawiki/w/index.php(3): include(string) #13 {main}