MediaWiki internal error.

Original exception: [475f9c566bb388962999627e] /mediawiki/index.php?title=Cahierlamsade&redirect=no 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 1054: Unknown column 'rev_actor' in 'field list'
Function: MediaWiki\Revision\RevisionStore::fetchRevisionRowFromConds
Query: SELECT rev_id,rev_page,rev_timestamp,rev_minor_edit,rev_deleted,rev_len,rev_parent_id,rev_sha1,comment_rev_comment.comment_text AS `rev_comment_text`,comment_rev_comment.comment_data AS `rev_comment_data`,comment_rev_comment.comment_id AS `rev_comment_cid`,actor_rev_user.actor_user AS `rev_user`,actor_rev_user.actor_name AS `rev_user_text`,rev_actor,page_namespace,page_title,page_id,page_latest,page_is_redirect,page_len,user_name FROM `wikilamsaderevision` JOIN `wikilamsaderevision_comment_temp` `temp_rev_comment` ON ((temp_rev_comment.revcomment_rev = rev_id)) JOIN `wikilamsadecomment` `comment_rev_comment` ON ((comment_rev_comment.comment_id = temp_rev_comment.revcomment_comment_id)) JOIN `wikilamsadeactor` `actor_rev_user` ON ((actor_rev_user.actor_id = rev_actor)) JOIN `wikilamsadepage` ON ((page_id = rev_page)) LEFT JOIN `wikilamsadeuser` ON ((actor_rev_user.actor_user != 0) AND (user_id = actor_rev_user.actor_user)) WHERE rev_id = 41 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/Revision/RevisionStore.php(2396): Wikimedia\Rdbms\DBConnRef->selectRow()
#8 /usr/share/mediawiki/includes/Revision/RevisionStore.php(2967): MediaWiki\Revision\RevisionStore->fetchRevisionRowFromConds()
#9 /usr/share/mediawiki/includes/libs/objectcache/wancache/WANObjectCache.php(1688): MediaWiki\Revision\RevisionStore->MediaWiki\Revision\{closure}()
#10 /usr/share/mediawiki/includes/libs/objectcache/wancache/WANObjectCache.php(1522): WANObjectCache->fetchOrRegenerate()
#11 /usr/share/mediawiki/includes/Revision/RevisionStore.php(2959): WANObjectCache->getWithSetCallback()
#12 /usr/share/mediawiki/includes/page/WikiPage.php(781): MediaWiki\Revision\RevisionStore->getKnownCurrentRevision()
#13 /usr/share/mediawiki/includes/page/WikiPage.php(806): WikiPage->loadLastEdit()
#14 /usr/share/mediawiki/includes/page/WikiPage.php(668): WikiPage->getRevisionRecord()
#15 /usr/share/mediawiki/includes/libs/objectcache/wancache/WANObjectCache.php(1688): WikiPage->{closure}()
#16 /usr/share/mediawiki/includes/libs/objectcache/wancache/WANObjectCache.php(1522): WANObjectCache->fetchOrRegenerate()
#17 /usr/share/mediawiki/includes/page/WikiPage.php(664): WANObjectCache->getWithSetCallback()
#18 /usr/share/mediawiki/includes/page/WikiPage.php(296): WikiPage->getContentModel()
#19 /usr/share/mediawiki/includes/MediaWiki.php(437): WikiPage->getContentHandler()
#20 /usr/share/mediawiki/includes/MediaWiki.php(320): MediaWiki->initializeArticle()
#21 /usr/share/mediawiki/includes/MediaWiki.php(904): MediaWiki->performRequest()
#22 /usr/share/mediawiki/includes/MediaWiki.php(562): MediaWiki->main()
#23 /usr/share/mediawiki/index.php(50): MediaWiki->run()
#24 /usr/share/mediawiki/index.php(46): wfIndexMain()
#25 {main}

Exception caught inside exception handler: [475f9c566bb388962999627e] /mediawiki/index.php?title=Cahierlamsade&redirect=no 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 1054: Unknown column 'rev_actor' in 'field list'
Function: MediaWiki\Revision\RevisionStore::fetchRevisionRowFromConds
Query: SELECT rev_id,rev_page,rev_timestamp,rev_minor_edit,rev_deleted,rev_len,rev_parent_id,rev_sha1,comment_rev_comment.comment_text AS `rev_comment_text`,comment_rev_comment.comment_data AS `rev_comment_data`,comment_rev_comment.comment_id AS `rev_comment_cid`,actor_rev_user.actor_user AS `rev_user`,actor_rev_user.actor_name AS `rev_user_text`,rev_actor,page_namespace,page_title,page_id,page_latest,page_is_redirect,page_len,user_name FROM `wikilamsaderevision` JOIN `wikilamsaderevision_comment_temp` `temp_rev_comment` ON ((temp_rev_comment.revcomment_rev = rev_id)) JOIN `wikilamsadecomment` `comment_rev_comment` ON ((comment_rev_comment.comment_id = temp_rev_comment.revcomment_comment_id)) JOIN `wikilamsadeactor` `actor_rev_user` ON ((actor_rev_user.actor_id = rev_actor)) JOIN `wikilamsadepage` ON ((page_id = rev_page)) LEFT JOIN `wikilamsadeuser` ON ((actor_rev_user.actor_user != 0) AND (user_id = actor_rev_user.actor_user)) WHERE rev_id = 41 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/Revision/RevisionStore.php(2396): Wikimedia\Rdbms\DBConnRef->selectRow()
#8 /usr/share/mediawiki/includes/Revision/RevisionStore.php(2967): MediaWiki\Revision\RevisionStore->fetchRevisionRowFromConds()
#9 /usr/share/mediawiki/includes/libs/objectcache/wancache/WANObjectCache.php(1688): MediaWiki\Revision\RevisionStore->MediaWiki\Revision\{closure}()
#10 /usr/share/mediawiki/includes/libs/objectcache/wancache/WANObjectCache.php(1522): WANObjectCache->fetchOrRegenerate()
#11 /usr/share/mediawiki/includes/Revision/RevisionStore.php(2959): WANObjectCache->getWithSetCallback()
#12 /usr/share/mediawiki/includes/page/WikiPage.php(781): MediaWiki\Revision\RevisionStore->getKnownCurrentRevision()
#13 /usr/share/mediawiki/includes/page/WikiPage.php(806): WikiPage->loadLastEdit()
#14 /usr/share/mediawiki/includes/page/WikiPage.php(668): WikiPage->getRevisionRecord()
#15 /usr/share/mediawiki/includes/libs/objectcache/wancache/WANObjectCache.php(1688): WikiPage->{closure}()
#16 /usr/share/mediawiki/includes/libs/objectcache/wancache/WANObjectCache.php(1522): WANObjectCache->fetchOrRegenerate()
#17 /usr/share/mediawiki/includes/page/WikiPage.php(664): WANObjectCache->getWithSetCallback()
#18 /usr/share/mediawiki/includes/page/WikiPage.php(296): WikiPage->getContentModel()
#19 /usr/share/mediawiki/includes/page/WikiPage.php(282): WikiPage->getContentHandler()
#20 /usr/share/mediawiki/includes/page/Article.php(2071): WikiPage->getActionOverrides()
#21 /usr/share/mediawiki/includes/actions/ActionFactory.php(264): Article->getActionOverrides()
#22 /usr/share/mediawiki/includes/actions/ActionFactory.php(363): MediaWiki\Actions\ActionFactory->getAction()
#23 /usr/share/mediawiki/includes/context/RequestContext.php(305): MediaWiki\Actions\ActionFactory->getActionName()
#24 /usr/share/mediawiki/includes/skins/Skin.php(132): RequestContext->getActionName()
#25 /usr/share/mediawiki/includes/skins/SkinTemplate.php(228): Skin->getTemplateData()
#26 /usr/share/mediawiki/includes/skins/SkinMustache.php(88): SkinTemplate->getTemplateData()
#27 /usr/share/mediawiki/skins/Vector/includes/SkinVector.php(454): SkinMustache->getTemplateData()
#28 /usr/share/mediawiki/includes/skins/SkinMustache.php(58): MediaWiki\Skins\Vector\SkinVector->getTemplateData()
#29 /usr/share/mediawiki/includes/skins/SkinTemplate.php(177): SkinMustache->generateHTML()
#30 /usr/share/mediawiki/includes/OutputPage.php(2876): SkinTemplate->outputPage()
#31 /usr/share/mediawiki/includes/exception/MWExceptionRenderer.php(183): OutputPage->output()
#32 /usr/share/mediawiki/includes/exception/MWExceptionRenderer.php(102): MWExceptionRenderer::reportHTML()
#33 /usr/share/mediawiki/includes/exception/MWExceptionHandler.php(131): MWExceptionRenderer::output()
#34 /usr/share/mediawiki/includes/exception/MWExceptionHandler.php(248): MWExceptionHandler::report()
#35 /usr/share/mediawiki/includes/MediaWiki.php(581): MWExceptionHandler::handleException()
#36 /usr/share/mediawiki/index.php(50): MediaWiki->run()
#37 /usr/share/mediawiki/index.php(46): wfIndexMain()
#38 {main}