Internal Server Error

[ZgaRezQmbjv5fW2mGb9rhwAAAAU] /api.php Wikimedia\Rdbms\DBConnectionError from line 1213 of /home/sites/marshalsguide/public_html/includes/libs/rdbms/loadbalancer/LoadBalancer.php: Cannot access the database: Unknown error (db101)
Backtrace:
#0 /home/sites/marshalsguide/public_html/includes/libs/rdbms/loadbalancer/LoadBalancer.php(758): Wikimedia\Rdbms\LoadBalancer->reportConnectionError()
#1 /home/sites/marshalsguide/public_html/includes/GlobalFunctions.php(2637): Wikimedia\Rdbms\LoadBalancer->getConnection(integer, array, boolean)
#2 /home/sites/marshalsguide/public_html/includes/cache/localisation/LCStoreDB.php(54): wfGetDB(integer)
#3 /home/sites/marshalsguide/public_html/includes/cache/localisation/LocalisationCache.php(391): LCStoreDB->get(string, string)
#4 /home/sites/marshalsguide/public_html/includes/cache/localisation/LocalisationCache.php(294): LocalisationCache->loadSubitem(string, string, string)
#5 /home/sites/marshalsguide/public_html/languages/Language.php(2645): LocalisationCache->getSubitem(string, string, string)
#6 /home/sites/marshalsguide/public_html/includes/cache/MessageCache.php(990): Language->getMessage(string)
#7 /home/sites/marshalsguide/public_html/includes/cache/MessageCache.php(948): MessageCache->getMessageForLang(LanguageEn, string, boolean, array)
#8 /home/sites/marshalsguide/public_html/includes/cache/MessageCache.php(890): MessageCache->getMessageFromFallbackChain(LanguageEn, string, boolean)
#9 /home/sites/marshalsguide/public_html/includes/Message.php(1308): MessageCache->get(string, boolean, LanguageEn)
#10 /home/sites/marshalsguide/public_html/includes/Message.php(863): Message->fetchMessage()
#11 /home/sites/marshalsguide/public_html/includes/Message.php(955): Message->toString(string)
#12 /home/sites/marshalsguide/public_html/includes/api/ApiErrorFormatter.php(454): Message->text()
#13 /home/sites/marshalsguide/public_html/includes/api/ApiErrorFormatter.php(148): ApiErrorFormatter_BackCompat->addWarningOrError(string, NULL, ApiMessage)
#14 /home/sites/marshalsguide/public_html/includes/api/ApiMain.php(1096): ApiErrorFormatter->addError(NULL, ApiMessage)
#15 /home/sites/marshalsguide/public_html/includes/api/ApiMain.php(581): ApiMain->substituteResultWithError(Wikimedia\Rdbms\DBConnectionError)
#16 /home/sites/marshalsguide/public_html/includes/api/ApiMain.php(538): ApiMain->handleException(Wikimedia\Rdbms\DBConnectionError)
#17 /home/sites/marshalsguide/public_html/includes/api/ApiMain.php(502): ApiMain->executeActionWithErrorHandling()
#18 /home/sites/marshalsguide/public_html/api.php(87): ApiMain->execute()
#19 {main}