How do i fix this error i added the following code to my localsetting php?



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(Cannot access the database)

Backtrace:

#0 /home/mysite/homes/filmpedia.myht.org/html/includes/libs/rdbms/loadbalancer/LoadBalancer.php(873): Wikimedia\Rdbms\LoadBalancer->reportConnectionError()
#1 /home/mysite/homes/filmpedia.myht.org/html/includes/libs/rdbms/loadbalancer/LoadBalancer.php(861): Wikimedia\Rdbms\LoadBalancer->getServerConnection()
#2 /home/mysite/homes/filmpedia.myht.org/html/includes/libs/rdbms/database/DBConnRef.php(103): Wikimedia\Rdbms\LoadBalancer->getConnectionInternal()
#3 /home/mysite/homes/filmpedia.myht.org/html/includes/libs/rdbms/database/DBConnRef.php(117): Wikimedia\Rdbms\DBConnRef->ensureConnection()
#4 /home/mysite/homes/filmpedia.myht.org/html/includes/libs/rdbms/database/DBConnRef.php(331): Wikimedia\Rdbms\DBConnRef->__call()
#5 /home/mysite/homes/filmpedia.myht.org/html/includes/language/LCStoreDB.php(65): Wikimedia\Rdbms\DBConnRef->selectField()
#6 /home/mysite/homes/filmpedia.myht.org/html/includes/language/LocalisationCache.php(448): LCStoreDB->get()
#7 /home/mysite/homes/filmpedia.myht.org/html/includes/language/LocalisationCache.php(494): LocalisationCache->isExpired()
#8 /home/mysite/homes/filmpedia.myht.org/html/includes/language/LocalisationCache.php(413): LocalisationCache->initLanguage()
#9 /home/mysite/homes/filmpedia.myht.org/html/includes/language/LocalisationCache.php(332): LocalisationCache->loadSubitem()
#10 /home/mysite/homes/filmpedia.myht.org/html/includes/language/Language.php(2601): LocalisationCache->getSubitem()
#11 /home/mysite/homes/filmpedia.myht.org/html/includes/language/MessageCache.php(1139): Language->getMessage()
#12 /home/mysite/homes/filmpedia.myht.org/html/includes/language/MessageCache.php(1097): MessageCache->getMessageForLang()
#13 /home/mysite/homes/filmpedia.myht.org/html/includes/language/MessageCache.php(1042): MessageCache->getMessageFromFallbackChain()
#14 /home/mysite/homes/filmpedia.myht.org/html/includes/language/Message.php(1476): MessageCache->get()
#15 /home/mysite/homes/filmpedia.myht.org/html/includes/language/Message.php(971): Message->fetchMessage()
#16 /home/mysite/homes/filmpedia.myht.org/html/includes/language/Message.php(1054): Message->format()
#17 /home/mysite/homes/filmpedia.myht.org/html/includes/title/MalformedTitleException.php(55): Message->text()
#18 /home/mysite/homes/filmpedia.myht.org/html/includes/title/MediaWikiTitleCodec.php(93): MalformedTitleException->__construct()
#19 /home/mysite/homes/filmpedia.myht.org/html/includes/title/MediaWikiTitleCodec.php(403): MediaWikiTitleCodec::{closure}()
#20 /home/mysite/homes/filmpedia.myht.org/html/includes/title/Title.php(3028): MediaWikiTitleCodec->splitTitleString()
#21 /home/mysite/homes/filmpedia.myht.org/html/includes/title/Title.php(513): MediaWiki\Title\Title->secureAndSplit()
#22 /home/mysite/homes/filmpedia.myht.org/html/includes/MediaWiki.php(92): MediaWiki\Title\Title::newFromURL()
#23 /home/mysite/homes/filmpedia.myht.org/html/includes/MediaWiki.php(165): MediaWiki->parseTitle()
#24 /home/mysite/homes/filmpedia.myht.org/html/includes/MediaWiki.php(876): MediaWiki->getTitle()
#25 /home/mysite/homes/filmpedia.myht.org/html/includes/MediaWiki.php(576): MediaWiki->main()
#26 /home/mysite/homes/filmpedia.myht.org/html/index.php(50): MediaWiki->run()
#27 /home/mysite/homes/filmpedia.myht.org/html/index.php(46): wfIndexMain()
#28 {main}