MediaWiki internal error.
Original exception: [7941f4c56f2988f63e156936] /wiki/%E7%87%95%E4%BA%91%E7%BB%87%E9%80%A0%E5%B1%80_%E7%9A%82%E7%BD%97%E8%A2%8D Wikimedia\Rdbms\DBQueryDisconnectedError: 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.
A connection error occurred during a query.
Query: SELECT page_id,page_namespace,page_title,page_is_redirect,page_is_new,page_touched,page_links_updated,page_latest,page_len,page_content_model FROM `page` WHERE page_namespace = 8 AND page_title = '表单/zh-hk' LIMIT 1
Function: MediaWiki\Page\PageStore::getPageByNameViaLinkCache
Error: 2006 MySQL server has gone away
Backtrace:
from /data/wwwroot/w/includes/libs/rdbms/database/Database.php(1616)
#0 /data/wwwroot/w/includes/libs/rdbms/database/Database.php(1602): Wikimedia\Rdbms\Database->getQueryException()
#1 /data/wwwroot/w/includes/libs/rdbms/database/Database.php(1576): Wikimedia\Rdbms\Database->getQueryExceptionAndLog()
#2 /data/wwwroot/w/includes/libs/rdbms/database/Database.php(952): Wikimedia\Rdbms\Database->reportQueryError()
#3 /data/wwwroot/w/includes/libs/rdbms/database/Database.php(1711): Wikimedia\Rdbms\Database->query()
#4 /data/wwwroot/w/includes/libs/rdbms/database/Database.php(1720): Wikimedia\Rdbms\Database->select()
#5 /data/wwwroot/w/includes/libs/rdbms/database/DBConnRef.php(103): Wikimedia\Rdbms\Database->selectRow()
#6 /data/wwwroot/w/includes/libs/rdbms/database/DBConnRef.php(344): Wikimedia\Rdbms\DBConnRef->__call()
#7 /data/wwwroot/w/includes/libs/rdbms/querybuilder/SelectQueryBuilder.php(689): Wikimedia\Rdbms\DBConnRef->selectRow()
#8 /data/wwwroot/w/includes/page/PageStore.php(199): Wikimedia\Rdbms\SelectQueryBuilder->fetchRow()
#9 /data/wwwroot/w/includes/cache/LinkCache.php(450): MediaWiki\Page\PageStore->MediaWiki\Page\{closure}()
#10 /data/wwwroot/w/includes/libs/objectcache/wancache/WANObjectCache.php(1689): LinkCache->{closure}()
#11 /data/wwwroot/w/includes/libs/objectcache/wancache/WANObjectCache.php(1522): WANObjectCache->fetchOrRegenerate()
#12 /data/wwwroot/w/includes/cache/LinkCache.php(455): WANObjectCache->getWithSetCallback()
#13 /data/wwwroot/w/includes/cache/LinkCache.php(494): LinkCache->getGoodLinkRowInternal()
#14 /data/wwwroot/w/includes/page/PageStore.php(188): LinkCache->getGoodLinkRow()
#15 /data/wwwroot/w/includes/page/PageStore.php(154): MediaWiki\Page\PageStore->getPageByNameViaLinkCache()
#16 /data/wwwroot/w/includes/page/PageStore.php(326): MediaWiki\Page\PageStore->getPageByName()
#17 /data/wwwroot/w/includes/Title.php(4100): MediaWiki\Page\PageStore->getPageByReference()
#18 /data/wwwroot/w/includes/Title.php(2830): Title->getFieldFromPageStore()
#19 /data/wwwroot/w/includes/page/LegacyArticleIdAccess.php(42): Title->getArticleID()
#20 /data/wwwroot/w/includes/Revision/RevisionStore.php(2929): MediaWiki\Revision\RevisionStore->getArticleId()
#21 /data/wwwroot/w/includes/language/MessageCache.php(1302): MediaWiki\Revision\RevisionStore->getKnownCurrentRevision()
#22 /data/wwwroot/w/includes/libs/objectcache/wancache/WANObjectCache.php(1689): MessageCache->{closure}()
#23 /data/wwwroot/w/includes/libs/objectcache/wancache/WANObjectCache.php(1522): WANObjectCache->fetchOrRegenerate()
#24 /data/wwwroot/w/includes/language/MessageCache.php(1328): WANObjectCache->getWithSetCallback()
#25 /data/wwwroot/w/includes/libs/objectcache/BagOStuff.php(216): MessageCache->{closure}()
#26 /data/wwwroot/w/includes/language/MessageCache.php(1330): BagOStuff->getWithSetCallback()
#27 /data/wwwroot/w/includes/language/MessageCache.php(1242): MessageCache->loadCachedMessagePageEntry()
#28 /data/wwwroot/w/includes/language/MessageCache.php(1163): MessageCache->getMsgFromNamespace()
#29 /data/wwwroot/w/includes/language/MessageCache.php(1097): MessageCache->getMessageForLang()
#30 /data/wwwroot/w/includes/language/MessageCache.php(1039): MessageCache->getMessageFromFallbackChain()
#31 /data/wwwroot/w/includes/language/Message.php(1473): MessageCache->get()
#32 /data/wwwroot/w/includes/language/Message.php(1098): Message->fetchMessage()
#33 /data/wwwroot/w/includes/skins/Skin.php(1606): Message->exists()
#34 /data/wwwroot/w/includes/skins/Skin.php(1552): Skin->addToSidebarPlain()
#35 /data/wwwroot/w/includes/skins/Skin.php(1495): Skin->addToSidebar()
#36 /data/wwwroot/w/includes/libs/objectcache/wancache/WANObjectCache.php(1689): Skin->{closure}()
#37 /data/wwwroot/w/includes/libs/objectcache/wancache/WANObjectCache.php(1522): WANObjectCache->fetchOrRegenerate()
#38 /data/wwwroot/w/includes/skins/Skin.php(1524): WANObjectCache->getWithSetCallback()
#39 /data/wwwroot/w/includes/skins/SkinTemplate.php(792): Skin->buildSidebar()
#40 /data/wwwroot/w/includes/skins/SkinTemplate.php(762): SkinTemplate->getPortletsTemplateData()
#41 /data/wwwroot/w/includes/skins/Skin.php(667): SkinTemplate->getCategoryLinks()
#42 /data/wwwroot/w/includes/skins/SkinTemplate.php(259): Skin->getCategories()
#43 /data/wwwroot/w/skins/chameleon/src/Chameleon.php(111): SkinTemplate->prepareQuickTemplate()
#44 /data/wwwroot/w/includes/skins/SkinTemplate.php(146): Skins\Chameleon\Chameleon->prepareQuickTemplate()
#45 /data/wwwroot/w/includes/skins/SkinTemplate.php(177): SkinTemplate->generateHTML()
#46 /data/wwwroot/w/includes/OutputPage.php(2876): SkinTemplate->outputPage()
#47 /data/wwwroot/w/includes/MediaWiki.php(922): OutputPage->output()
#48 /data/wwwroot/w/includes/MediaWiki.php(562): MediaWiki->main()
#49 /data/wwwroot/w/index.php(50): MediaWiki->run()
#50 /data/wwwroot/w/index.php(46): wfIndexMain()
#51 {main}
Exception caught inside exception handler: [7941f4c56f2988f63e156936] /wiki/%E7%87%95%E4%BA%91%E7%BB%87%E9%80%A0%E5%B1%80_%E7%9A%82%E7%BD%97%E8%A2%8D Wikimedia\Rdbms\DBConnectionError: Cannot access the database: No such file or directory (localhost)
Backtrace:
from /data/wwwroot/w/includes/libs/rdbms/loadbalancer/LoadBalancer.php(1477)
#0 /data/wwwroot/w/includes/libs/rdbms/loadbalancer/LoadBalancer.php(993): Wikimedia\Rdbms\LoadBalancer->reportConnectionError()
#1 /data/wwwroot/w/includes/libs/rdbms/loadbalancer/LoadBalancer.php(944): Wikimedia\Rdbms\LoadBalancer->getServerConnection()
#2 /data/wwwroot/w/includes/libs/rdbms/database/DBConnRef.php(95): Wikimedia\Rdbms\LoadBalancer->getConnectionInternal()
#3 /data/wwwroot/w/includes/libs/rdbms/database/DBConnRef.php(101): Wikimedia\Rdbms\DBConnRef->ensureConnection()
#4 /data/wwwroot/w/includes/libs/rdbms/database/DBConnRef.php(326): Wikimedia\Rdbms\DBConnRef->__call()
#5 /data/wwwroot/w/includes/libs/rdbms/querybuilder/SelectQueryBuilder.php(644): Wikimedia\Rdbms\DBConnRef->select()
#6 /data/wwwroot/w/includes/PageProps.php(131): Wikimedia\Rdbms\SelectQueryBuilder->fetchResultSet()
#7 /data/wwwroot/w/extensions/WikiSEO/includes/WikiSEO.php(220): PageProps->getProperties()
#8 /data/wwwroot/w/extensions/WikiSEO/includes/WikiSEO.php(109): MediaWiki\Extension\WikiSEO\WikiSEO->loadPagePropsFromDb()
#9 /data/wwwroot/w/extensions/WikiSEO/includes/Hooks/PageHooks.php(66): MediaWiki\Extension\WikiSEO\WikiSEO->setMetadataFromPageProps()
#10 /data/wwwroot/w/includes/HookContainer/HookContainer.php(160): MediaWiki\Extension\WikiSEO\Hooks\PageHooks->onBeforePageDisplay()
#11 /data/wwwroot/w/includes/HookContainer/HookRunner.php(946): MediaWiki\HookContainer\HookContainer->run()
#12 /data/wwwroot/w/includes/OutputPage.php(2871): MediaWiki\HookContainer\HookRunner->onBeforePageDisplay()
#13 /data/wwwroot/w/includes/exception/MWExceptionRenderer.php(183): OutputPage->output()
#14 /data/wwwroot/w/includes/exception/MWExceptionRenderer.php(102): MWExceptionRenderer::reportHTML()
#15 /data/wwwroot/w/includes/exception/MWExceptionHandler.php(131): MWExceptionRenderer::output()
#16 /data/wwwroot/w/includes/exception/MWExceptionHandler.php(248): MWExceptionHandler::report()
#17 /data/wwwroot/w/includes/MediaWiki.php(581): MWExceptionHandler::handleException()
#18 /data/wwwroot/w/index.php(50): MediaWiki->run()
#19 /data/wwwroot/w/index.php(46): wfIndexMain()
#20 {main}