MediaWiki internal error.

Original exception: exception 'DBQueryError' with message 'A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: http://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script
Query: INSERT INTO "objectcache" (keyname,value,exptime) VALUES ('ris:messages:de-formal:lock','\\313\\2642\\264\\006\\000','2024-05-02 21:28:15 GMT')
Function: DatabasePostgres::insert
Error: 1 FEHLER: doppelter Schlüsselwert verletzt Unique-Constraint »objectcache_keyname_key«
' in /var/www/html/includes/db/Database.php:860
Stack trace:
#0 /var/www/html/includes/db/Database.php(827): DatabaseBase->reportQueryError('FEHLER: doppel...', 1, 'INSERT INTO "ob...', 'DatabasePostgre...', '')
#1 /var/www/html/extensions/SimpleSecurity/SimpleSecurity_body.php(385) : eval()'d code(4): DatabaseBase->query('INSERT INTO "ob...', 'DatabasePostgre...', '')
#2 /var/www/html/includes/db/DatabasePostgres.php(523): Database_SimpleSecurity->query('INSERT INTO "ob...', 'DatabasePostgre...', '')
#3 /var/www/html/includes/db/Database.php(2279): DatabasePostgres->insert('objectcache', Array)
#4 /var/www/html/includes/objectcache/SqlBagOStuff.php(183): DatabaseBase->replace('objectcache', Array, Array, 'SqlBagOStuff::s...')
#5 /var/www/html/includes/objectcache/BagOStuff.php(108): SqlBagOStuff->set('ris:messages:de...', 1, 10)
#6 /var/www/html/includes/cache/MessageCache.php(560): BagOStuff->add('ris:messages:de...', 1, 10)
#7 /var/www/html/includes/cache/MessageCache.php(328): MessageCache->lock('ris:messages:de...')
#8 /var/www/html/includes/cache/MessageCache.php(698): MessageCache->load('de-formal')
#9 /var/www/html/includes/cache/MessageCache.php(638): MessageCache->getMsgFromNamespace('Pagetitle', 'de-formal')
#10 /var/www/html/includes/GlobalFunctions.php(1183): MessageCache->get('pagetitle', true, false)
#11 /var/www/html/includes/GlobalFunctions.php(1163): wfMsgGetKey('pagetitle', true, false, true)
#12 /var/www/html/includes/GlobalFunctions.php(1081): wfMsgReal('pagetitle', Array)
#13 /var/www/html/includes/OutputPage.php(773): wfMsg('pagetitle', '2208868/meeting...')
#14 /var/www/html/includes/Article.php(382): OutputPage->setPageTitle('2208868/meeting...')
#15 /var/www/html/includes/Wiki.php(484): Article->view()
#16 /var/www/html/includes/Wiki.php(255): MediaWiki->performAction(Object(Article))
#17 /var/www/html/includes/Wiki.php(640): MediaWiki->performRequest()
#18 /var/www/html/includes/Wiki.php(547): MediaWiki->main()
#19 /var/www/html/index.php(57): MediaWiki->run()
#20 {main}

Exception caught inside exception handler: exception 'DBQueryError' with message 'A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: http://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script
Query: SELECT page_title FROM "page" WHERE page_is_redirect = '0' AND page_namespace = '8' AND (page_title NOT LIKE '%/%' ) AND (page_len > 10000)
Function: MessageCache::loadFromDB(de-formal)-big
Error: 1 FEHLER: Relation »page« existiert nicht
LINE 1: ...e-formal)-big 18.118.120.109 */ page_title FROM "page" WH...
^
' in /var/www/html/includes/db/Database.php:860
Stack trace:
#0 /var/www/html/includes/db/Database.php(827): DatabaseBase->reportQueryError('FEHLER: Relati...', 1, 'SELECT page_ti...', 'MessageCache::l...', false)
#1 /var/www/html/extensions/SimpleSecurity/SimpleSecurity_body.php(385) : eval()'d code(4): DatabaseBase->query('SELECT page_ti...', 'MessageCache::l...', false)
#2 /var/www/html/includes/db/Database.php(1292): Database_SimpleSecurity->query('SELECT page_ti...', 'MessageCache::l...')
#3 /var/www/html/includes/cache/MessageCache.php(412): DatabaseBase->select('page', 'page_title', Array, 'MessageCache::l...')
#4 /var/www/html/includes/cache/MessageCache.php(335): MessageCache->loadFromDB('de-formal')
#5 /var/www/html/includes/cache/MessageCache.php(698): MessageCache->load('de-formal')
#6 /var/www/html/includes/cache/MessageCache.php(638): MessageCache->getMsgFromNamespace('Databaseerror', 'de-formal')
#7 /var/www/html/includes/GlobalFunctions.php(1183): MessageCache->get('databaseerror', true, false)
#8 /var/www/html/includes/GlobalFunctions.php(1163): wfMsgGetKey('databaseerror', true, false, false)
#9 /var/www/html/includes/GlobalFunctions.php(1093): wfMsgReal('databaseerror', Array, true, false, false)
#10 /var/www/html/includes/Exception.php(91): wfMsgNoTrans('databaseerror', Array)
#11 /var/www/html/includes/db/DatabaseError.php(307): MWException->msg('databaseerror', 'Database error')
#12 /var/www/html/includes/Exception.php(169): DBQueryError->getPageTitle()
#13 /var/www/html/includes/Exception.php(209): MWException->reportHTML()
#14 /var/www/html/includes/Exception.php(392): MWException->report()
#15 /var/www/html/includes/Exception.php(471): MWExceptionHandler::report(Object(DBQueryError))
#16 /var/www/html/includes/Wiki.php(550): MWExceptionHandler::handle(Object(DBQueryError))
#17 /var/www/html/index.php(57): MediaWiki->run()
#18 {main}