[V2-yAQpEEaoAAAUnkDcAAAAG] /wiki/Special:NewItem MWException from line 207 of /srv/mediawiki/php-master/languages/Language.php: Invalid language code "<<>>"

Backtrace:

#0 /srv/mediawiki/php-master/languages/Language.php(189): Language::newFromCode(string)
#1 /srv/mediawiki/php-master/extensions/Wikidata/extensions/Wikibase/repo/includes/MediaWikiLanguageDirectionalityLookup.php(23): Language::factory(string)
#2 /srv/mediawiki/php-master/extensions/Wikidata/extensions/Wikibase/view/src/TermsListView.php(159): Wikibase\Repo\MediaWikiLanguageDirectionalityLookup->getDirectionality(string)
#3 /srv/mediawiki/php-master/extensions/Wikidata/extensions/Wikibase/view/src/TermsListView.php(146): Wikibase\View\TermsListView->getTermView(Wikibase\DataModel\Term\TermList, string, string, string)
#4 /srv/mediawiki/php-master/extensions/Wikidata/extensions/Wikibase/repo/includes/ParserOutput/PlaceholderEmittingEntityTermsView.php(131): Wikibase\View\TermsListView->getListItemHtml(Wikibase\DataModel\Entity\Item, Wikibase\DataModel\Entity\Item, Wikibase\DataModel\Entity\Item, string)
#5 /srv/mediawiki/php-master/extensions/Wikidata/extensions/Wikibase/repo/includes/ParserOutput/EntityParserOutputGenerator.php(340): Wikibase\Repo\ParserOutput\PlaceholderEmittingEntityTermsView->getTermsListItems(string, Wikibase\DataModel\Entity\Item, Wikibase\DataModel\Entity\Item, Wikibase\DataModel\Entity\Item)
#6 /srv/mediawiki/php-master/extensions/Wikidata/extensions/Wikibase/repo/includes/ParserOutput/EntityParserOutputGenerator.php(167): Wikibase\Repo\ParserOutput\EntityParserOutputGenerator->addHtmlToParserOutput(ParserOutput, Wikibase\DataModel\Entity\Item, Wikibase\Lib\Store\EntityInfo)
#7 /srv/mediawiki/php-master/extensions/Wikidata/extensions/Wikibase/repo/includes/Content/EntityContent.php(295): Wikibase\Repo\ParserOutput\EntityParserOutputGenerator->getParserOutput(Wikibase\DataModel\Entity\Item, boolean)
#8 /srv/mediawiki/php-master/extensions/Wikidata/extensions/Wikibase/repo/includes/Content/EntityContent.php(233): Wikibase\EntityContent->getParserOutputFromEntityView(Title, NULL, ParserOptions, boolean)
#9 /srv/mediawiki/php-master/includes/page/WikiPage.php(2111): Wikibase\EntityContent->getParserOutput(Title, NULL, ParserOptions)
#10 /srv/mediawiki/php-master/extensions/SpamBlacklist/SpamBlacklistHooks.php(57): WikiPage->prepareContentForEdit(Wikibase\ItemContent)
#11 /srv/mediawiki/php-master/includes/Hooks.php(195): SpamBlacklistHooks::filterMergedContent(RequestContext, Wikibase\ItemContent, Status, string, User, boolean)
#12 /srv/mediawiki/php-master/extensions/Wikidata/extensions/Wikibase/repo/includes/Hooks/EditFilterHookRunner.php(108): Hooks::run(string, array)
#13 /srv/mediawiki/php-master/extensions/Wikidata/extensions/Wikibase/repo/includes/EditEntity.php(644): Wikibase\Repo\Hooks\EditFilterHookRunner->run(Wikibase\DataModel\Entity\Item, User, string)
#14 /srv/mediawiki/php-master/extensions/Wikidata/extensions/Wikibase/repo/includes/Specials/SpecialWikibaseRepoPage.php(173): Wikibase\EditEntity->attemptSave(string, integer, string)
#15 /srv/mediawiki/php-master/extensions/Wikidata/extensions/Wikibase/repo/includes/Specials/SpecialNewEntity.php(140): Wikibase\Repo\Specials\SpecialWikibaseRepoPage->saveEntity(Wikibase\DataModel\Entity\Item, Wikibase\Summary, string, integer)
#16 /srv/mediawiki/php-master/includes/specialpage/SpecialPage.php(505): Wikibase\Repo\Specials\SpecialNewEntity->execute(NULL)
#17 /srv/mediawiki/php-master/includes/specialpage/SpecialPageFactory.php(598): SpecialPage->run(NULL)
#18 /srv/mediawiki/php-master/includes/MediaWiki.php(282): SpecialPageFactory::executePath(Title, RequestContext)
#19 /srv/mediawiki/php-master/includes/MediaWiki.php(748): MediaWiki->performRequest()
#20 /srv/mediawiki/php-master/includes/MediaWiki.php(520): MediaWiki->main()
#21 /srv/mediawiki/php-master/index.php(43): MediaWiki->run()
#22 /srv/mediawiki/w/index.php(3): include(string)
#23 {main}