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_DBQueryError",
        "info": "[4d988b358c11c0c87ce5d516] Exception caught: A database query error has occurred. This may indicate a bug in the software.",
        "errorclass": "Wikimedia\\Rdbms\\DBQueryError",
        "*": "Wikimedia\\Rdbms\\DBQueryError at /usr/www/users/tjifyn/mediawiki-1.39.8/includes/libs/rdbms/database/Database.php(1618)\nfrom /usr/www/users/tjifyn/mediawiki-1.39.8/includes/libs/rdbms/database/Database.php(1618)\n#0 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/libs/rdbms/database/Database.php(1602): Wikimedia\\Rdbms\\Database->getQueryException(string, integer, string, string)\n#1 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/libs/rdbms/database/Database.php(1576): Wikimedia\\Rdbms\\Database->getQueryExceptionAndLog(string, integer, string, string)\n#2 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/libs/rdbms/database/Database.php(952): Wikimedia\\Rdbms\\Database->reportQueryError(string, integer, string, string, boolean)\n#3 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/libs/rdbms/database/Database.php(1838): Wikimedia\\Rdbms\\Database->query(string, string, integer)\n#4 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/libs/rdbms/database/DBConnRef.php(103): Wikimedia\\Rdbms\\Database->insert(string, array, string)\n#5 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/libs/rdbms/database/DBConnRef.php(382): Wikimedia\\Rdbms\\DBConnRef->__call(string, array)\n#6 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/LCStoreDB.php(98): Wikimedia\\Rdbms\\DBConnRef->insert(string, array, string)\n#7 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/LocalisationCache.php(1136): LCStoreDB->finishWrite()\n#8 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/LocalisationCache.php(544): LocalisationCache->recache(string)\n#9 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/LocalisationCache.php(410): LocalisationCache->initLanguage(string)\n#10 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/LocalisationCache.php(447): LocalisationCache->loadItem(string, string)\n#11 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/LocalisationCache.php(352): LocalisationCache->loadSubitem(string, string, string)\n#12 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/LocalisationCache.php(392): LocalisationCache->getSubitem(string, string, string)\n#13 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/MessageCache.php(716): LocalisationCache->getSubitemList(string, string)\n#14 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/MessageCache.php(741): MessageCache->isMainCacheable(string)\n#15 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/MessageCache.php(626): MessageCache->separateCacheableRows(Wikimedia\\Rdbms\\MysqliResultWrapper)\n#16 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/MessageCache.php(481): MessageCache->loadFromDB(string, NULL)\n#17 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/MessageCache.php(398): MessageCache->loadFromDBWithMainLock(string, array, NULL)\n#18 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/MessageCache.php(318): MessageCache->loadUnguarded(string, NULL)\n#19 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/MessageCache.php(1213): MessageCache->load(string)\n#20 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/MessageCache.php(1126): MessageCache->getMsgFromNamespace(string, string)\n#21 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/MessageCache.php(1097): MessageCache->getMessageForLang(LanguageEn, string, boolean, array)\n#22 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/MessageCache.php(1039): MessageCache->getMessageFromFallbackChain(LanguageEn, string, boolean)\n#23 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/Message.php(1473): MessageCache->get(string, boolean, LanguageEn)\n#24 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/Message.php(970): Message->fetchMessage()\n#25 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/Message.php(1053): Message->format(string)\n#26 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/api/ApiFeedContributions.php(146): Message->text()\n#27 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/api/ApiMain.php(1904): ApiFeedContributions->execute()\n#28 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/api/ApiMain.php(879): ApiMain->executeAction()\n#29 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/api/ApiMain.php(850): ApiMain->executeActionWithErrorHandling()\n#30 /usr/www/users/tjifyn/mediawiki-1.39.8/api.php(90): ApiMain->execute()\n#31 /usr/www/users/tjifyn/mediawiki-1.39.8/api.php(45): wfApiMain()\n#32 {main}"
    }
}