[Zfla6biitfkPbu73ZUSgOwAAAAM] / mysqli_sql_exception from line 115 of /opt/web/wiki/common/includes/libs/rdbms/database/DatabaseMysqli.php: Connexion refusée

Backtrace:

#0 /opt/web/wiki/common/includes/libs/rdbms/database/DatabaseMysqli.php(115): mysqli->real_connect()
#1 /opt/web/wiki/common/includes/libs/rdbms/database/DatabaseMysqlBase.php(131): Wikimedia\Rdbms\DatabaseMysqli->mysqlConnect()
#2 /opt/web/wiki/common/includes/libs/rdbms/database/Database.php(285): Wikimedia\Rdbms\DatabaseMysqlBase->open()
#3 /opt/web/wiki/common/includes/libs/rdbms/database/DatabaseMysqlBase.php(102): Wikimedia\Rdbms\Database->__construct()
#4 /opt/web/wiki/common/includes/libs/rdbms/database/Database.php(415): Wikimedia\Rdbms\DatabaseMysqlBase->__construct()
#5 /opt/web/wiki/common/includes/libs/rdbms/loadbalancer/LoadBalancer.php(985): Wikimedia\Rdbms\Database::factory()
#6 /opt/web/wiki/common/includes/libs/rdbms/loadbalancer/LoadBalancer.php(801): Wikimedia\Rdbms\LoadBalancer->reallyOpenConnection()
#7 /opt/web/wiki/common/includes/libs/rdbms/loadbalancer/LoadBalancer.php(667): Wikimedia\Rdbms\LoadBalancer->openConnection()
#8 /opt/web/wiki/common/includes/GlobalFunctions.php(2858): Wikimedia\Rdbms\LoadBalancer->getConnection()
#9 /opt/web/wiki/common/includes/cache/MessageCache.php(471): wfGetDB()
#10 /opt/web/wiki/common/includes/cache/MessageCache.php(426): MessageCache->loadFromDB()
#11 /opt/web/wiki/common/includes/cache/MessageCache.php(350): MessageCache->loadFromDBWithLock()
#12 /opt/web/wiki/common/includes/cache/MessageCache.php(991): MessageCache->load()
#13 /opt/web/wiki/common/includes/cache/MessageCache.php(918): MessageCache->getMsgFromNamespace()
#14 /opt/web/wiki/common/includes/cache/MessageCache.php(888): MessageCache->getMessageForLang()
#15 /opt/web/wiki/common/includes/cache/MessageCache.php(825): MessageCache->getMessageFromFallbackChain()
#16 /opt/web/wiki/common/includes/Message.php(1257): MessageCache->get()
#17 /opt/web/wiki/common/includes/Message.php(842): Message->fetchMessage()
#18 /opt/web/wiki/common/includes/Message.php(934): Message->toString()
#19 /opt/web/wiki/common/includes/Title.php(582): Message->text()
#20 /opt/web/wiki/common/includes/MediaWiki.php(120): Title::newMainPage()
#21 /opt/web/wiki/common/includes/MediaWiki.php(140): MediaWiki->parseTitle()
#22 /opt/web/wiki/common/includes/MediaWiki.php(767): MediaWiki->getTitle()
#23 /opt/web/wiki/common/includes/MediaWiki.php(523): MediaWiki->main()
#24 /opt/web/wiki/fr/index.php(43): MediaWiki->run()
#25 {main}