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": "[3af01f5e6c0c93a878c22d19] 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(330): LocalisationCache->loadItem(string, string)\n#11 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/Language.php(492): LocalisationCache->getItem(string, string)\n#12 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/language/Language.php(569): Language->getNamespaces()\n#13 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/user/UserNameUtils.php(289): Language->getNsText(integer)\n#14 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/ParamValidator/TypeDef/UserDef.php(260): MediaWiki\\User\\UserNameUtils->getCanonical(string, string)\n#15 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/ParamValidator/TypeDef/UserDef.php(86): MediaWiki\\ParamValidator\\TypeDef\\UserDef->processUser(string)\n#16 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/libs/ParamValidator/ParamValidator.php(597): MediaWiki\\ParamValidator\\TypeDef\\UserDef->validate(string, string, array, array)\n#17 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/libs/ParamValidator/ParamValidator.php(551): Wikimedia\\ParamValidator\\ParamValidator->validateValue(string, string, array, array)\n#18 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/api/Validator/ApiParamValidator.php(359): Wikimedia\\ParamValidator\\ParamValidator->getValue(string, array, array)\n#19 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/api/ApiBase.php(1110): MediaWiki\\Api\\Validator\\ApiParamValidator->getValue(ApiFeedContributions, string, array, array)\n#20 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/api/ApiBase.php(793): ApiBase->getParameterFromSettings(string, array, boolean)\n#21 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/api/ApiMain.php(1488): ApiBase->extractRequestParams()\n#22 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/api/ApiMain.php(1883): ApiMain->setupModule()\n#23 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/api/ApiMain.php(879): ApiMain->executeAction()\n#24 /usr/www/users/tjifyn/mediawiki-1.39.8/includes/api/ApiMain.php(850): ApiMain->executeActionWithErrorHandling()\n#25 /usr/www/users/tjifyn/mediawiki-1.39.8/api.php(90): ApiMain->execute()\n#26 /usr/www/users/tjifyn/mediawiki-1.39.8/api.php(45): wfApiMain()\n#27 {main}"
    }
}