Database error

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A database query error has occurred. This may indicate a bug in the software.

[df2585f16f5b6ca5439d9e8c] /wiki/index.php?title=Special:WhatLinksHere/Elven&limit=50 Wikimedia\Rdbms\DBQueryError: A database query error has occurred. Did you forget to run your application's database schema updater after upgrading or after adding a new extension?

Please see https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Upgrading and https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:How_to_debug for more information.

Error 1146: Table 'mediawiki.linktarget' doesn't exist
Function: MediaWiki\Linker\LinkTargetStore::getLinkTargetIdFromCache
Query: SELECT lt_id,lt_namespace,lt_title FROM `linktarget` WHERE lt_namespace = 0 AND lt_title = 'Elven' LIMIT 1

Backtrace:

from /usr/share/mediawiki/includes/libs/rdbms/database/Database.php(1618)
#0 /usr/share/mediawiki/includes/libs/rdbms/database/Database.php(1602): Wikimedia\Rdbms\Database->getQueryException()
#1 /usr/share/mediawiki/includes/libs/rdbms/database/Database.php(1576): Wikimedia\Rdbms\Database->getQueryExceptionAndLog()
#2 /usr/share/mediawiki/includes/libs/rdbms/database/Database.php(952): Wikimedia\Rdbms\Database->reportQueryError()
#3 /usr/share/mediawiki/includes/libs/rdbms/database/Database.php(1711): Wikimedia\Rdbms\Database->query()
#4 /usr/share/mediawiki/includes/libs/rdbms/database/Database.php(1720): Wikimedia\Rdbms\Database->select()
#5 /usr/share/mediawiki/includes/libs/rdbms/database/DBConnRef.php(103): Wikimedia\Rdbms\Database->selectRow()
#6 /usr/share/mediawiki/includes/libs/rdbms/database/DBConnRef.php(344): Wikimedia\Rdbms\DBConnRef->__call()
#7 /usr/share/mediawiki/includes/linker/LinkTargetStore.php(257): Wikimedia\Rdbms\DBConnRef->selectRow()
#8 /usr/share/mediawiki/includes/libs/objectcache/wancache/WANObjectCache.php(1688): MediaWiki\Linker\LinkTargetStore->MediaWiki\Linker\{closure}()
#9 /usr/share/mediawiki/includes/libs/objectcache/wancache/WANObjectCache.php(1522): WANObjectCache->fetchOrRegenerate()
#10 /usr/share/mediawiki/includes/linker/LinkTargetStore.php(250): WANObjectCache->getWithSetCallback()
#11 /usr/share/mediawiki/includes/libs/objectcache/BagOStuff.php(216): MediaWiki\Linker\LinkTargetStore->MediaWiki\Linker\{closure}()
#12 /usr/share/mediawiki/includes/linker/LinkTargetStore.php(243): BagOStuff->getWithSetCallback()
#13 /usr/share/mediawiki/includes/linker/LinkTargetStore.php(126): MediaWiki\Linker\LinkTargetStore->getLinkTargetIdFromCache()
#14 /usr/share/mediawiki/includes/linker/LinksMigration.php(74): MediaWiki\Linker\LinkTargetStore->getLinkTargetId()
#15 /usr/share/mediawiki/includes/specials/SpecialWhatLinksHere.php(232): MediaWiki\Linker\LinksMigration->getLinksConditions()
#16 /usr/share/mediawiki/includes/specials/SpecialWhatLinksHere.php(144): SpecialWhatLinksHere->showIndirectLinks()
#17 /usr/share/mediawiki/includes/specialpage/SpecialPage.php(701): SpecialWhatLinksHere->execute()
#18 /usr/share/mediawiki/includes/specialpage/SpecialPageFactory.php(1428): SpecialPage->run()
#19 /usr/share/mediawiki/includes/MediaWiki.php(316): MediaWiki\SpecialPage\SpecialPageFactory->executePath()
#20 /usr/share/mediawiki/includes/MediaWiki.php(904): MediaWiki->performRequest()
#21 /usr/share/mediawiki/includes/MediaWiki.php(562): MediaWiki->main()
#22 /usr/share/mediawiki/index.php(50): MediaWiki->run()
#23 /usr/share/mediawiki/index.php(46): wfIndexMain()
#24 {main}