MediaWiki API result

This is the HTML representation of the JSON format. HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format. To see the non-HTML representation of the JSON format, set format=json.
See the complete documentation, or the API help for more information.
{
    "error": {
        "code": "internal_api_error_DBConnectionError",
        "info": "[f7fb00756338f0648aaa894d] Exception caught: A database query error has occurred. This may indicate a bug in the software.",
        "errorclass": "Wikimedia\\Rdbms\\DBConnectionError",
        "*": "Wikimedia\\Rdbms\\DBConnectionError at /media/files/bulbawiki-shared/codebase-common/includes/libs/rdbms/loadbalancer/LoadBalancer.php(1477)\nfrom /media/files/bulbawiki-shared/codebase-common/includes/libs/rdbms/loadbalancer/LoadBalancer.php(1477)\n#0 /media/files/bulbawiki-shared/codebase-common/includes/libs/rdbms/loadbalancer/LoadBalancer.php(972): Wikimedia\\Rdbms\\LoadBalancer->reportConnectionError()\n#1 /media/files/bulbawiki-shared/codebase-common/includes/libs/rdbms/loadbalancer/LoadBalancer.php(944): Wikimedia\\Rdbms\\LoadBalancer->getServerConnection()\n#2 /media/files/bulbawiki-shared/codebase-common/includes/libs/rdbms/database/DBConnRef.php(95): Wikimedia\\Rdbms\\LoadBalancer->getConnectionInternal()\n#3 /media/files/bulbawiki-shared/codebase-common/includes/libs/rdbms/database/DBConnRef.php(101): Wikimedia\\Rdbms\\DBConnRef->ensureConnection()\n#4 /media/files/bulbawiki-shared/codebase-common/includes/libs/rdbms/database/DBConnRef.php(707): Wikimedia\\Rdbms\\DBConnRef->__call()\n#5 /media/files/bulbawiki-shared/codebase-common/includes/libs/rdbms/database/Database.php(3154): Wikimedia\\Rdbms\\DBConnRef->getSessionLagStatus()\n#6 /media/files/bulbawiki-shared/codebase-common/extensions/AbuseFilter/includes/ChangeTags/ChangeTagsManager.php(129): Wikimedia\\Rdbms\\Database::getCacheSetOptions()\n#7 /media/files/bulbawiki-shared/codebase-common/includes/libs/objectcache/wancache/WANObjectCache.php(1689): MediaWiki\\Extension\\AbuseFilter\\ChangeTags\\ChangeTagsManager->MediaWiki\\Extension\\AbuseFilter\\ChangeTags\\{closure}()\n#8 /media/files/bulbawiki-shared/codebase-common/includes/libs/objectcache/wancache/WANObjectCache.php(1522): WANObjectCache->fetchOrRegenerate()\n#9 /media/files/bulbawiki-shared/codebase-common/extensions/AbuseFilter/includes/ChangeTags/ChangeTagsManager.php(140): WANObjectCache->getWithSetCallback()\n#10 /media/files/bulbawiki-shared/codebase-common/extensions/AbuseFilter/includes/ChangeTags/ChangeTagsManager.php(70): MediaWiki\\Extension\\AbuseFilter\\ChangeTags\\ChangeTagsManager->loadTags()\n#11 /media/files/bulbawiki-shared/codebase-common/extensions/AbuseFilter/includes/Hooks/Handlers/ChangeTagsHandler.php(28): MediaWiki\\Extension\\AbuseFilter\\ChangeTags\\ChangeTagsManager->getTagsDefinedByFilters()\n#12 /media/files/bulbawiki-shared/codebase-common/includes/HookContainer/HookContainer.php(160): MediaWiki\\Extension\\AbuseFilter\\Hooks\\Handlers\\ChangeTagsHandler->onListDefinedTags()\n#13 /media/files/bulbawiki-shared/codebase-common/includes/HookContainer/HookRunner.php(2353): MediaWiki\\HookContainer\\HookContainer->run()\n#14 /media/files/bulbawiki-shared/codebase-common/includes/changetags/ChangeTags.php(1723): MediaWiki\\HookContainer\\HookRunner->onListDefinedTags()\n#15 /media/files/bulbawiki-shared/codebase-common/includes/libs/objectcache/wancache/WANObjectCache.php(1689): ChangeTags::{closure}()\n#16 /media/files/bulbawiki-shared/codebase-common/includes/libs/objectcache/wancache/WANObjectCache.php(1522): WANObjectCache->fetchOrRegenerate()\n#17 /media/files/bulbawiki-shared/codebase-common/includes/changetags/ChangeTags.php(1729): WANObjectCache->getWithSetCallback()\n#18 /media/files/bulbawiki-shared/codebase-common/includes/changetags/ChangeTags.php(1659): ChangeTags::listSoftwareDefinedTags()\n#19 /media/files/bulbawiki-shared/codebase-common/includes/api/ApiFeedContributions.php(320): ChangeTags::listDefinedTags()\n#20 /media/files/bulbawiki-shared/codebase-common/includes/api/ApiBase.php(1786): ApiFeedContributions->getAllowedParams()\n#21 /media/files/bulbawiki-shared/codebase-common/includes/api/ApiBase.php(780): ApiBase->getFinalParams()\n#22 /media/files/bulbawiki-shared/codebase-common/includes/api/ApiMain.php(1488): ApiBase->extractRequestParams()\n#23 /media/files/bulbawiki-shared/codebase-common/includes/api/ApiMain.php(1883): ApiMain->setupModule()\n#24 /media/files/bulbawiki-shared/codebase-common/includes/api/ApiMain.php(879): ApiMain->executeAction()\n#25 /media/files/bulbawiki-shared/codebase-common/includes/api/ApiMain.php(850): ApiMain->executeActionWithErrorHandling()\n#26 /media/files/bulbawiki-shared/codebase-common/api.php(90): ApiMain->execute()\n#27 /media/files/bulbawiki-shared/codebase-common/api.php(45): wfApiMain()\n#28 {main}"
    }
}