MediaWiki internal error.

Original exception: [1f8a7271d7c4b7e4d3f568a3] /Speci%25C3%25A1ln%25C3%25AD:Co_odkazuje_na/eSuba DBQueryError from line 934 of /var/www/clients/client1/web9/web/includes/db/Database.php: A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: https://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script
Query: SELECT page_id,page_len,page_is_redirect,page_latest,page_content_model FROM `sc2_page` WHERE page_namespace = '0' AND page_title = 'HlavnĂ­_strana' LIMIT 1
Function: LinkCache::addLinkObj
Error: 1054 Unknown column 'page_content_model' in 'field list' (localhost)

Backtrace:
#0 /var/www/clients/client1/web9/web/includes/db/Database.php(901): DatabaseBase->reportQueryError(string, integer, string, string, boolean)
#1 /var/www/clients/client1/web9/web/includes/db/Database.php(1234): DatabaseBase->query(string, string)
#2 /var/www/clients/client1/web9/web/includes/db/Database.php(1293): DatabaseBase->select(string, array, array, string, array, array)
#3 /var/www/clients/client1/web9/web/includes/cache/LinkCache.php(264): DatabaseBase->selectRow(string, array, array, string)
#4 /var/www/clients/client1/web9/web/includes/Title.php(3217): LinkCache->addLinkObj(Title)
#5 /var/www/clients/client1/web9/web/includes/Title.php(4288): Title->getArticleID(integer)
#6 /var/www/clients/client1/web9/web/includes/Title.php(4363): Title->exists()
#7 /var/www/clients/client1/web9/web/includes/Linker.php(224): Title->isKnown()
#8 /var/www/clients/client1/web9/web/includes/OutputPage.php(2620): Linker::link(Title, NULL, array, array, array)
#9 /var/www/clients/client1/web9/web/includes/OutputPage.php(2656): OutputPage->addReturnTo(Title, array)
#10 /var/www/clients/client1/web9/web/includes/OutputPage.php(2409): OutputPage->returnToMain()
#11 /var/www/clients/client1/web9/web/includes/exception/ErrorPageError.php(58): OutputPage->showErrorPage(string, string, array)
#12 /var/www/clients/client1/web9/web/includes/exception/BadTitleError.php(59): ErrorPageError->report()
#13 /var/www/clients/client1/web9/web/includes/MediaWiki.php(515): BadTitleError->report()
#14 /var/www/clients/client1/web9/web/index.php(43): MediaWiki->run()
#15 {main}

Exception caught inside exception handler: [1f8a7271d7c4b7e4d3f568a3] /Speci%25C3%25A1ln%25C3%25AD:Co_odkazuje_na/eSuba DBQueryError from line 934 of /var/www/clients/client1/web9/web/includes/db/Database.php: A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: https://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script
Query: SELECT page_namespace,page_title,page_touched,rev_len,rev_sha1 FROM `sc2_page` INNER JOIN `sc2_revision` ON ((page_latest=rev_id)) WHERE (page_namespace = '8' AND page_title IN ('Common.js','Fallback.js','Common.css','Fallback.css','Print.css') )
Function: ResourceLoaderWikiModule::getTitleInfo
Error: 1054 Unknown column 'rev_sha1' in 'field list' (localhost)

Backtrace:
#0 /var/www/clients/client1/web9/web/includes/db/Database.php(901): DatabaseBase->reportQueryError(string, integer, string, string, boolean)
#1 /var/www/clients/client1/web9/web/includes/db/Database.php(1234): DatabaseBase->query(string, string)
#2 /var/www/clients/client1/web9/web/includes/resourceloader/ResourceLoaderWikiModule.php(308): DatabaseBase->select(array, array, string, string, array, array)
#3 /var/www/clients/client1/web9/web/includes/resourceloader/ResourceLoaderWikiModule.php(260): ResourceLoaderWikiModule->getTitleInfo(ResourceLoaderContext)
#4 /var/www/clients/client1/web9/web/includes/OutputPage.php(2854): ResourceLoaderWikiModule->isKnownEmpty(ResourceLoaderContext)
#5 /var/www/clients/client1/web9/web/includes/OutputPage.php(3766): OutputPage->makeResourceLoaderLink(array, string)
#6 /var/www/clients/client1/web9/web/includes/OutputPage.php(2696): OutputPage->buildCssLinks()
#7 /var/www/clients/client1/web9/web/includes/skins/SkinTemplate.php(482): OutputPage->headElement(SkinFallback)
#8 /var/www/clients/client1/web9/web/includes/skins/SkinTemplate.php(246): SkinTemplate->prepareQuickTemplate(OutputPage)
#9 /var/www/clients/client1/web9/web/includes/OutputPage.php(2335): SkinTemplate->outputPage()
#10 /var/www/clients/client1/web9/web/includes/exception/MWException.php(206): OutputPage->output()
#11 /var/www/clients/client1/web9/web/includes/exception/MWException.php(246): MWException->reportHTML()
#12 /var/www/clients/client1/web9/web/includes/exception/MWExceptionHandler.php(69): MWException->report()
#13 /var/www/clients/client1/web9/web/includes/exception/MWExceptionHandler.php(180): MWExceptionHandler::report(DBQueryError)
#14 /var/www/clients/client1/web9/web/includes/MediaWiki.php(518): MWExceptionHandler::handleException(DBQueryError)
#15 /var/www/clients/client1/web9/web/index.php(43): MediaWiki->run()
#16 {main}