MediaWiki internal error.
Original exception: [aUUfMctOJFWn-kkc5EokMwAAAHM] /wiki/Enter_the_Gungeon/%EC%B4%9D DBQueryError from line 1054 of /home/uman/www/w/includes/libs/rdbms/database/Database.php: A database query error has occurred. Did you forget to run your application's database schema updater after upgrading?
Query: SELECT page_id,page_len,page_is_redirect,page_latest,page_content_model,page_touched FROM `page` WHERE page_namespace = '10' AND page_title = 'Enter_the_Gungeon' LIMIT 1
Function: LinkCache::fetchPageRow
Error: 2002 Connection refused (localhost)
Backtrace:
#0 /home/uman/www/w/includes/libs/rdbms/database/Database.php(912): Database->reportQueryError(string, integer, string, string, boolean)
#1 /home/uman/www/w/includes/libs/rdbms/database/Database.php(1254): Database->query(string, string)
#2 /home/uman/www/w/includes/libs/rdbms/database/Database.php(1322): Database->select(string, array, array, string, array, array)
#3 /home/uman/www/w/includes/cache/LinkCache.php(295): Database->selectRow(string, array, array, string)
#4 /home/uman/www/w/includes/cache/LinkCache.php(259): LinkCache->fetchPageRow(DatabaseMysqli, Title)
#5 /home/uman/www/w/includes/libs/objectcache/WANObjectCache.php(1004): LinkCache->{closure}(boolean, integer, array, NULL)
#6 /home/uman/www/w/includes/libs/objectcache/WANObjectCache.php(906): WANObjectCache->doGetWithSetCallback(string, integer, Closure, array)
#7 /home/uman/www/w/includes/cache/LinkCache.php(264): WANObjectCache->getWithSetCallback(string, integer, Closure)
#8 /home/uman/www/w/includes/Title.php(3184): LinkCache->addLinkObj(Title)
#9 /home/uman/www/w/includes/parser/Parser.php(3491): Title->getArticleID()
#10 /home/uman/www/w/includes/parser/Parser.php(3475): Parser->statelessFetchRevision(Title, Parser)
#11 /home/uman/www/w/includes/parser/Parser.php(3575): Parser->fetchCurrentRevisionOfTitle(Title)
#12 /home/uman/www/w/includes/parser/Parser.php(3510): Parser->statelessFetchTemplate(Title, Parser)
#13 /home/uman/www/w/includes/parser/Parser.php(3438): Parser->fetchTemplateAndTitle(Title)
#14 /home/uman/www/w/includes/parser/Parser.php(3197): Parser->getTemplateDom(Title)
#15 /home/uman/www/w/includes/parser/Preprocessor_DOM.php(1175): Parser->braceSubstitution(array, PPFrame_DOM)
#16 /home/uman/www/w/includes/parser/Parser.php(2917): PPFrame_DOM->expand(DOMElement, integer)
#17 /home/uman/www/w/includes/parser/Parser.php(1265): Parser->replaceVariables(string)
#18 /home/uman/www/w/includes/parser/Parser.php(441): Parser->internalParse(string)
#19 /home/uman/www/w/includes/content/WikitextContent.php(330): Parser->parse(string, Title, ParserOptions, boolean, boolean, integer)
#20 /home/uman/www/w/includes/content/AbstractContent.php(497): WikitextContent->fillParserOutput(Title, integer, ParserOptions, boolean, ParserOutput)
#21 /home/uman/www/w/includes/poolcounter/PoolWorkArticleView.php(139): AbstractContent->getParserOutput(Title, integer, ParserOptions)
#22 /home/uman/www/w/includes/poolcounter/PoolCounterWork.php(123): PoolWorkArticleView->doWork()
#23 /home/uman/www/w/includes/page/Article.php(651): PoolCounterWork->execute()
#24 /home/uman/www/w/includes/actions/ViewAction.php(71): Article->view()
#25 /home/uman/www/w/includes/MediaWiki.php(495): ViewAction->show()
#26 /home/uman/www/w/includes/MediaWiki.php(289): MediaWiki->performAction(Article, Title)
#27 /home/uman/www/w/includes/MediaWiki.php(851): MediaWiki->performRequest()
#28 /home/uman/www/w/includes/MediaWiki.php(512): MediaWiki->main()
#29 /home/uman/www/w/index.php(64): MediaWiki->run()
#30 {main}
Exception caught inside exception handler: [aUUfMctOJFWn-kkc5EokMwAAAHM] /wiki/Enter_the_Gungeon/%EC%B4%9D DBConnectionError from line 748 of /home/uman/www/w/includes/libs/rdbms/database/Database.php: Cannot access the database: Connection refused (localhost)
Backtrace:
#0 /home/uman/www/w/includes/libs/rdbms/loadbalancer/LoadBalancer.php(897): Database->reportConnectionError(string)
#1 /home/uman/www/w/includes/libs/rdbms/loadbalancer/LoadBalancer.php(572): LoadBalancer->reportConnectionError()
#2 /home/uman/www/w/includes/GlobalFunctions.php(3075): LoadBalancer->getConnection(integer, array, boolean)
#3 /home/uman/www/w/includes/cache/LinkBatch.php(195): wfGetDB(integer)
#4 /home/uman/www/w/includes/cache/LinkBatch.php(137): LinkBatch->doQuery()
#5 /home/uman/www/w/includes/cache/LinkBatch.php(126): LinkBatch->executeInto(LinkCache)
#6 /home/uman/www/w/includes/skins/Skin.php(225): LinkBatch->execute()
#7 /home/uman/www/w/includes/skins/Skin.php(145): Skin->preloadExistence()
#8 /home/uman/www/w/skins/Liberty/SkinLiberty.php(9): Skin->initPage(OutputPage)
#9 /home/uman/www/w/includes/skins/SkinTemplate.php(249): SkinLiberty->initPage(OutputPage)
#10 /home/uman/www/w/includes/OutputPage.php(2333): SkinTemplate->outputPage()
#11 /home/uman/www/w/includes/exception/MWExceptionRenderer.php(178): OutputPage->output()
#12 /home/uman/www/w/includes/exception/MWExceptionRenderer.php(50): MWExceptionRenderer::reportHTML(DBQueryError)
#13 /home/uman/www/w/includes/exception/MWExceptionHandler.php(71): MWExceptionRenderer::output(DBQueryError, integer)
#14 /home/uman/www/w/includes/exception/MWExceptionHandler.php(137): MWExceptionHandler::report(DBQueryError)
#15 /home/uman/www/w/includes/MediaWiki.php(540): MWExceptionHandler::handleException(DBQueryError)
#16 /home/uman/www/w/index.php(64): MediaWiki->run()
#17 {main}