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": "[e9469765ffe3c281babcdf9b] Exception caught: A database query error has occurred. This may indicate a bug in the software.",
        "errorclass": "Wikimedia\\Rdbms\\DBConnectionError",
        "*": "Wikimedia\\Rdbms\\DBConnectionError at /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/libs/rdbms/loadbalancer/LoadBalancer.php(1423)\n#0 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/libs/rdbms/loadbalancer/LoadBalancer.php(937): Wikimedia\\Rdbms\\LoadBalancer->reportConnectionError()\n#1 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/libs/rdbms/loadbalancer/LoadBalancer.php(904): Wikimedia\\Rdbms\\LoadBalancer->getServerConnection(integer, string, integer)\n#2 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/libs/rdbms/loadbalancer/LoadBalancer.php(1049): Wikimedia\\Rdbms\\LoadBalancer->getConnection(integer, array, string, integer)\n#3 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/GlobalFunctions.php(2463): Wikimedia\\Rdbms\\LoadBalancer->getMaintenanceConnectionRef(integer, array, string)\n#4 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/extensions/Gadgets/includes/MediaWikiGadgetsDefinitionRepo.php(106): wfGetDB(integer)\n#5 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/libs/objectcache/wancache/WANObjectCache.php(1529): MediaWikiGadgetsDefinitionRepo->{closure}(boolean, integer, array, NULL, array)\n#6 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/libs/objectcache/wancache/WANObjectCache.php(1376): WANObjectCache->fetchOrRegenerate(string, integer, Closure, array, array)\n#7 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/extensions/Gadgets/includes/MediaWikiGadgetsDefinitionRepo.php(116): WANObjectCache->getWithSetCallback(string, integer, Closure, array)\n#8 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/extensions/Gadgets/includes/MediaWikiGadgetsDefinitionRepo.php(32): MediaWikiGadgetsDefinitionRepo->loadGadgets()\n#9 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/extensions/Gadgets/includes/GadgetRepo.php(71): MediaWikiGadgetsDefinitionRepo->getGadgetIds()\n#10 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/extensions/Gadgets/includes/GadgetHooks.php(114): GadgetRepo->getStructuredList()\n#11 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/HookContainer/HookContainer.php(329): GadgetHooks::userGetDefaultOptions(array)\n#12 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/HookContainer/HookContainer.php(132): MediaWiki\\HookContainer\\HookContainer->callLegacyHook(string, array, array, array)\n#13 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/HookContainer/HookRunner.php(4254): MediaWiki\\HookContainer\\HookContainer->run(string, array)\n#14 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/user/DefaultOptionsLookup.php(99): MediaWiki\\HookContainer\\HookRunner->onUserGetDefaultOptions(array)\n#15 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/user/UserOptionsManager.php(494): MediaWiki\\User\\DefaultOptionsLookup->getDefaultOptions()\n#16 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/user/UserOptionsManager.php(135): MediaWiki\\User\\UserOptionsManager->loadUserOptions(User, integer)\n#17 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/user/User.php(2671): MediaWiki\\User\\UserOptionsManager->getOption(User, string, NULL, boolean)\n#18 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/context/RequestContext.php(355): User->getOption(string)\n#19 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/context/DerivativeContext.php(234): RequestContext->getLanguage()\n#20 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/context/ContextSource.php(141): DerivativeContext->getLanguage()\n#21 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/api/ApiHelp.php(47): ContextSource->getLanguage()\n#22 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/api/ApiMain.php(1593): ApiHelp->execute()\n#23 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/api/ApiMain.php(529): ApiMain->executeAction()\n#24 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/includes/api/ApiMain.php(500): ApiMain->executeActionWithErrorHandling()\n#25 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/api.php(90): ApiMain->execute()\n#26 /srv/www/vhosts/www.bioontology.org/app/mediawiki-1.35.9/api.php(45): wfApiMain()\n#27 {main}"
    }
}