WikiThing not loading

I can't access any Wiki pages. I tried two different pages and this is what happened:

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(Cannot access the database: Too many connections (wiki.cwh621jgfadf.us-east-1.rds.amazonaws.com))

Backtrace:

#0 /var/www/html/includes/libs/rdbms/loadbalancer/LoadBalancer.php(995): Wikimedia\Rdbms\Database->reportConnectionError('Unknown error (...')
#1 /var/www/html/includes/libs/rdbms/loadbalancer/LoadBalancer.php(666): Wikimedia\Rdbms\LoadBalancer->reportConnectionError()
#2 /var/www/html/includes/GlobalFunctions.php(3062): Wikimedia\Rdbms\LoadBalancer->getConnection(-1, Array, false)
#3 /var/www/html/includes/user/User.php(498): wfGetDB(-1)
#4 /var/www/html/includes/libs/objectcache/WANObjectCache.php(889): User->{closure}(false, 3600, Array, NULL)
#5 internal function: WANObjectCache->{closure}(false, 3600, Array, NULL)
#6 /var/www/html/includes/libs/objectcache/WANObjectCache.php(1009): call_user_func_array(Object(Closure), Array)
#7 /var/www/html/includes/libs/objectcache/WANObjectCache.php(895): WANObjectCache->doGetWithSetCallback('global:user:id:...', 3600, Object(Closure), Array, NULL)
#8 /var/www/html/includes/user/User.php(527): WANObjectCache->getWithSetCallback('global:user:id:...', 3600, Object(Closure), Array)
#9 /var/www/html/includes/user/User.php(446): User->loadFromCache()
#10 /var/www/html/includes/user/User.php(410): User->loadFromId(0)
#11 /var/www/html/includes/session/UserInfo.php(88): User->load()
#12 /var/www/html/includes/session/CookieSessionProvider.php(119): MediaWiki\Session\UserInfo::newFromId('202084')
#13 /var/www/html/includes/session/SessionManager.php(487): MediaWiki\Session\CookieSessionProvider->provideSessionInfo(Object(WebRequest))
#14 /var/www/html/includes/session/SessionManager.php(190): MediaWiki\Session\SessionManager->getSessionInfoForRequest(Object(WebRequest))
#15 /var/www/html/includes/WebRequest.php(735): MediaWiki\Session\SessionManager->getSessionForRequest(Object(WebRequest))
#16 /var/www/html/includes/session/SessionManager.php(129): WebRequest->getSession()
#17 /var/www/html/includes/Setup.php(734): MediaWiki\Session\SessionManager::getGlobalSession()
#18 /var/www/html/includes/WebStart.php(139): require_once('/var/www/html/i...')
#19 /var/www/html/index.php(40): require('/var/www/html/i...')
#20 {main}

Confirming.

It's down for me as well.

Confirming. https://wiki.librarything.com/index.php/User:Bnielsen/ gives the same error message as reported in >1 lauralkeet:

I'm getting the same, just checked in here to see if it had been reported.

Unfortunately, this seems to be happening quite frequently with the wiki sites. Last time was 30 November.