Warning: mysqli::query(): MySQL server has gone away in /home/akimoto/public_html/wiki/includes/libs/rdbms/database/DatabaseMysqli.php on line 47

Warning: mysqli::query(): Error reading result set's header in /home/akimoto/public_html/wiki/includes/libs/rdbms/database/DatabaseMysqli.php on line 47
MediaWiki internal error.

Original exception: [ZgaFGvQbOUGntAG76JqzfQAAACo] /wiki/index.php?title=Uno_Mizuki&diff=prev&oldid=241260 Wikimedia\Rdbms\DBQueryError from line 1149 of /home/akimoto/public_html/wiki/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 rev_id,rev_page,rev_text_id,rev_timestamp,rev_user_text,rev_user,rev_minor_edit,rev_deleted,rev_len,rev_parent_id,rev_sha1,rev_comment AS `rev_comment_text`,NULL AS `rev_comment_data`,NULL AS `rev_comment_cid`,rev_content_format,rev_content_model,page_namespace,page_title,page_id,page_latest,page_is_redirect,page_len,user_name FROM `wiki_revision` INNER JOIN `wiki_page` ON ((page_id = rev_page)) LEFT JOIN `wiki_user` ON ((rev_user != 0) AND (user_id = rev_user)) WHERE rev_page = '4977' AND page_id = '4977' AND rev_id = '26063' LIMIT 1
Function: Revision::fetchFromConds
Error: 2002 Connection refused (localhost)

Backtrace:
#0 /home/akimoto/public_html/wiki/includes/libs/rdbms/database/Database.php(979): Wikimedia\Rdbms\Database->reportQueryError(string, integer, string, string, boolean)
#1 /home/akimoto/public_html/wiki/includes/libs/rdbms/database/Database.php(1343): Wikimedia\Rdbms\Database->query(string, string)
#2 /home/akimoto/public_html/wiki/includes/libs/rdbms/database/Database.php(1411): Wikimedia\Rdbms\Database->select(array, array, array, string, array, array)
#3 /home/akimoto/public_html/wiki/includes/Revision.php(422): Wikimedia\Rdbms\Database->selectRow(array, array, array, string, array, array)
#4 /home/akimoto/public_html/wiki/includes/Revision.php(362): Revision::fetchFromConds(Wikimedia\Rdbms\DatabaseMysqli, array, integer)
#5 /home/akimoto/public_html/wiki/includes/Revision.php(271): Revision::loadFromConds(Wikimedia\Rdbms\DatabaseMysqli, array)
#6 /home/akimoto/public_html/wiki/includes/Revision.php(1949): Revision::loadFromPageId(Wikimedia\Rdbms\DatabaseMysqli, integer, integer)
#7 [internal function]: Revision::{closure}(boolean, integer, array, NULL)
#8 /home/akimoto/public_html/wiki/includes/libs/objectcache/WANObjectCache.php(1012): call_user_func_array(Closure, array)
#9 /home/akimoto/public_html/wiki/includes/libs/objectcache/WANObjectCache.php(914): WANObjectCache->doGetWithSetCallback(string, integer, Closure, array)
#10 /home/akimoto/public_html/wiki/includes/Revision.php(1958): WANObjectCache->getWithSetCallback(string, integer, Closure)
#11 /home/akimoto/public_html/wiki/includes/parser/Parser.php(3498): Revision::newKnownCurrent(Wikimedia\Rdbms\DatabaseMysqli, integer, integer)
#12 [internal function]: Parser->statelessFetchRevision(Title, Parser)
#13 /home/akimoto/public_html/wiki/includes/parser/Parser.php(3479): call_user_func(array, Title, Parser)
#14 /home/akimoto/public_html/wiki/includes/parser/Parser.php(3579): Parser->fetchCurrentRevisionOfTitle(Title)
#15 [internal function]: Parser->statelessFetchTemplate(Title, Parser)
#16 /home/akimoto/public_html/wiki/includes/parser/Parser.php(3514): call_user_func(array, Title, Parser)
#17 /home/akimoto/public_html/wiki/includes/parser/Parser.php(3442): Parser->fetchTemplateAndTitle(Title)
#18 /home/akimoto/public_html/wiki/includes/parser/Parser.php(3200): Parser->getTemplateDom(Title)
#19 /home/akimoto/public_html/wiki/includes/parser/Preprocessor_DOM.php(1229): Parser->braceSubstitution(array, PPFrame_DOM)
#20 /home/akimoto/public_html/wiki/includes/parser/Parser.php(2921): PPFrame_DOM->expand(PPNode_DOM, integer)
#21 /home/akimoto/public_html/wiki/includes/parser/Parser.php(1277): Parser->replaceVariables(string)
#22 /home/akimoto/public_html/wiki/includes/parser/Parser.php(451): Parser->internalParse(string)
#23 /home/akimoto/public_html/wiki/includes/content/WikitextContent.php(329): Parser->parse(string, Title, ParserOptions, boolean, boolean, integer)
#24 /home/akimoto/public_html/wiki/includes/content/AbstractContent.php(516): WikitextContent->fillParserOutput(Title, integer, ParserOptions, boolean, ParserOutput)
#25 /home/akimoto/public_html/wiki/includes/poolcounter/PoolWorkArticleView.php(145): AbstractContent->getParserOutput(Title, integer, ParserOptions)
#26 /home/akimoto/public_html/wiki/includes/poolcounter/PoolCounterWork.php(123): PoolWorkArticleView->doWork()
#27 /home/akimoto/public_html/wiki/includes/page/WikiPage.php(1086): PoolCounterWork->execute()
#28 /home/akimoto/public_html/wiki/includes/diff/DifferenceEngine.php(655): WikiPage->getParserOutput(ParserOptions, integer)
#29 /home/akimoto/public_html/wiki/includes/diff/DifferenceEngine.php(628): DifferenceEngine->getParserOutput(WikiPage, Revision)
#30 /home/akimoto/public_html/wiki/includes/diff/DifferenceEngine.php(480): DifferenceEngine->renderNewRevision()
#31 /home/akimoto/public_html/wiki/includes/page/Article.php(727): DifferenceEngine->showDiffPage(boolean)
#32 /home/akimoto/public_html/wiki/includes/page/Article.php(457): Article->showDiffPage()
#33 /home/akimoto/public_html/wiki/includes/actions/ViewAction.php(68): Article->view()
#34 /home/akimoto/public_html/wiki/includes/MediaWiki.php(499): ViewAction->show()
#35 /home/akimoto/public_html/wiki/includes/MediaWiki.php(293): MediaWiki->performAction(Article, Title)
#36 /home/akimoto/public_html/wiki/includes/MediaWiki.php(851): MediaWiki->performRequest()
#37 /home/akimoto/public_html/wiki/includes/MediaWiki.php(523): MediaWiki->main()
#38 /home/akimoto/public_html/wiki/index.php(43): MediaWiki->run()
#39 {main}

Exception caught inside exception handler: [ZgaFGvQbOUGntAG76JqzfQAAACo] /wiki/index.php?title=Uno_Mizuki&diff=prev&oldid=241260 Wikimedia\Rdbms\DBConnectionError from line 800 of /home/akimoto/public_html/wiki/includes/libs/rdbms/database/Database.php: Cannot access the database: Connection refused (localhost)
Backtrace:
#0 /home/akimoto/public_html/wiki/includes/libs/rdbms/loadbalancer/LoadBalancer.php(1029): Wikimedia\Rdbms\Database->reportConnectionError(string)
#1 /home/akimoto/public_html/wiki/includes/libs/rdbms/loadbalancer/LoadBalancer.php(671): Wikimedia\Rdbms\LoadBalancer->reportConnectionError()
#2 /home/akimoto/public_html/wiki/includes/GlobalFunctions.php(2858): Wikimedia\Rdbms\LoadBalancer->getConnection(integer, array, boolean)
#3 /home/akimoto/public_html/wiki/includes/cache/localisation/LCStoreDB.php(45): wfGetDB(integer)
#4 /home/akimoto/public_html/wiki/includes/cache/localisation/LocalisationCache.php(392): LCStoreDB->get(string, string)
#5 /home/akimoto/public_html/wiki/includes/cache/localisation/LocalisationCache.php(291): LocalisationCache->loadSubitem(string, string, string)
#6 /home/akimoto/public_html/wiki/languages/Language.php(2587): LocalisationCache->getSubitem(string, string, string)
#7 /home/akimoto/public_html/wiki/includes/cache/MessageCache.php(933): Language->getMessage(string)
#8 /home/akimoto/public_html/wiki/includes/cache/MessageCache.php(888): MessageCache->getMessageForLang(Language, string, boolean, array)
#9 /home/akimoto/public_html/wiki/includes/cache/MessageCache.php(829): MessageCache->getMessageFromFallbackChain(Language, string, boolean)
#10 /home/akimoto/public_html/wiki/includes/Message.php(1275): MessageCache->get(string, boolean, Language)
#11 /home/akimoto/public_html/wiki/includes/Message.php(842): Message->fetchMessage()
#12 /home/akimoto/public_html/wiki/includes/Message.php(971): Message->toString(string)
#13 /home/akimoto/public_html/wiki/includes/exception/MWExceptionRenderer.php(133): Message->escaped()
#14 /home/akimoto/public_html/wiki/includes/exception/MWExceptionRenderer.php(54): MWExceptionRenderer::reportHTML(Wikimedia\Rdbms\DBQueryError)
#15 /home/akimoto/public_html/wiki/includes/exception/MWExceptionHandler.php(75): MWExceptionRenderer::output(Wikimedia\Rdbms\DBQueryError, integer)
#16 /home/akimoto/public_html/wiki/includes/exception/MWExceptionHandler.php(130): MWExceptionHandler::report(Wikimedia\Rdbms\DBQueryError)
#17 /home/akimoto/public_html/wiki/includes/MediaWiki.php(550): MWExceptionHandler::handleException(Wikimedia\Rdbms\DBQueryError)
#18 /home/akimoto/public_html/wiki/index.php(43): MediaWiki->run()
#19 {main}

Warning: Error while sending QUERY packet. PID=11479 in /home/akimoto/public_html/wiki/includes/libs/rdbms/database/DatabaseMysqli.php on line 47