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Backtrace:
#0 /srv/web_rnw_wiki/public_html_1.39.x/includes/libs/rdbms/loadbalancer/LoadBalancer.php(972): Wikimedia\Rdbms\LoadBalancer->reportConnectionError() #1 /srv/web_rnw_wiki/public_html_1.39.x/includes/libs/rdbms/loadbalancer/LoadBalancer.php(944): Wikimedia\Rdbms\LoadBalancer->getServerConnection() #2 /srv/web_rnw_wiki/public_html_1.39.x/includes/libs/rdbms/database/DBConnRef.php(95): Wikimedia\Rdbms\LoadBalancer->getConnectionInternal() #3 /srv/web_rnw_wiki/public_html_1.39.x/includes/libs/rdbms/database/DBConnRef.php(101): Wikimedia\Rdbms\DBConnRef->ensureConnection() #4 /srv/web_rnw_wiki/public_html_1.39.x/includes/libs/rdbms/database/DBConnRef.php(313): Wikimedia\Rdbms\DBConnRef->__call() #5 /srv/web_rnw_wiki/public_html_1.39.x/includes/language/LCStoreDB.php(65): Wikimedia\Rdbms\DBConnRef->selectField() #6 /srv/web_rnw_wiki/public_html_1.39.x/includes/language/LocalisationCache.php(496): LCStoreDB->get() #7 /srv/web_rnw_wiki/public_html_1.39.x/includes/language/LocalisationCache.php(542): LocalisationCache->isExpired() #8 /srv/web_rnw_wiki/public_html_1.39.x/includes/language/LocalisationCache.php(410): LocalisationCache->initLanguage() #9 /srv/web_rnw_wiki/public_html_1.39.x/includes/language/LocalisationCache.php(330): LocalisationCache->loadItem() #10 /srv/web_rnw_wiki/public_html_1.39.x/includes/language/LanguageFallback.php(106): LocalisationCache->getItem() #11 /srv/web_rnw_wiki/public_html_1.39.x/includes/language/LanguageFactory.php(186): MediaWiki\Languages\LanguageFallback->getAll() #12 /srv/web_rnw_wiki/public_html_1.39.x/includes/language/LanguageFactory.php(144): MediaWiki\Languages\LanguageFactory->newFromCode() #13 /srv/web_rnw_wiki/public_html_1.39.x/includes/libs/MapCacheLRU.php(274): MediaWiki\Languages\LanguageFactory->MediaWiki\Languages\{closure}() #14 /srv/web_rnw_wiki/public_html_1.39.x/includes/language/LanguageFactory.php(145): MapCacheLRU->getWithSetCallback() #15 /srv/web_rnw_wiki/public_html_1.39.x/includes/language/LanguageFactory.php(128): MediaWiki\Languages\LanguageFactory->getRawLanguage() #16 /srv/web_rnw_wiki/public_html_1.39.x/includes/ServiceWiring.php(453): MediaWiki\Languages\LanguageFactory->getLanguage() #17 /srv/web_rnw_wiki/public_html_1.39.x/vendor/wikimedia/services/src/ServiceContainer.php(447): Wikimedia\Services\ServiceContainer::{closure}() #18 /srv/web_rnw_wiki/public_html_1.39.x/vendor/wikimedia/services/src/ServiceContainer.php(411): Wikimedia\Services\ServiceContainer->createService() #19 /srv/web_rnw_wiki/public_html_1.39.x/includes/MediaWikiServices.php(301): Wikimedia\Services\ServiceContainer->getService() #20 /srv/web_rnw_wiki/public_html_1.39.x/includes/MediaWikiServices.php(855): MediaWiki\MediaWikiServices->getService() #21 /srv/web_rnw_wiki/public_html_1.39.x/includes/ServiceWiring.php(2060): MediaWiki\MediaWikiServices->getContentLanguage() #22 /srv/web_rnw_wiki/public_html_1.39.x/vendor/wikimedia/services/src/ServiceContainer.php(447): Wikimedia\Services\ServiceContainer::{closure}() #23 /srv/web_rnw_wiki/public_html_1.39.x/vendor/wikimedia/services/src/ServiceContainer.php(411): Wikimedia\Services\ServiceContainer->createService() #24 /srv/web_rnw_wiki/public_html_1.39.x/includes/MediaWikiServices.php(301): Wikimedia\Services\ServiceContainer->getService() #25 /srv/web_rnw_wiki/public_html_1.39.x/includes/MediaWikiServices.php(1940): MediaWiki\MediaWikiServices->getService() #26 /srv/web_rnw_wiki/public_html_1.39.x/includes/session/SessionManager.php(224): MediaWiki\MediaWikiServices->getUserNameUtils() #27 /srv/web_rnw_wiki/public_html_1.39.x/includes/session/SessionManager.php(130): MediaWiki\Session\SessionManager->__construct() #28 /srv/web_rnw_wiki/public_html_1.39.x/includes/Setup.php(440): MediaWiki\Session\SessionManager::singleton() #29 /srv/web_rnw_wiki/public_html_1.39.x/includes/WebStart.php(86): require_once('/srv/web_rnw_wi...') #30 /srv/web_rnw_wiki/public_html_1.39.x/index.php(44): require('/srv/web_rnw_wi...') #31 {main}