{"error":{"code":"internal_api_error_Error","info":"[b4fe073ef5771e6dbdb9d686] Exception caught: Class \"FormatJson\" not found","errorclass":"Error","*":"Error at /var/www/wiki/includes/exception/MWExceptionHandler.php(710)\n#0 /var/www/wiki/includes/exception/MWExceptionHandler.php(262): MWExceptionHandler::logError()\n#1 /var/www/wiki/includes/AutoLoader.php(109): MWExceptionHandler::handleError()\n#2 /var/www/wiki/includes/AutoLoader.php(109): require(string)\n#3 /var/www/wiki/includes/api/ApiFormatJson.php(65): AutoLoader::autoload()\n#4 /var/www/wiki/includes/api/ApiMain.php(1841): ApiFormatJson->execute()\n#5 /var/www/wiki/includes/api/ApiMain.php(1601): ApiMain->printResult()\n#6 /var/www/wiki/includes/api/ApiMain.php(529): ApiMain->executeAction()\n#7 /var/www/wiki/includes/api/ApiMain.php(500): ApiMain->executeActionWithErrorHandling()\n#8 /var/www/wiki/api.php(90): ApiMain->execute()\n#9 /var/www/wiki/api.php(45): wfApiMain()\n#10 {main}"},"warnings":{"main":{"*":"Subscribe to the mediawiki-api-announce mailing list at <https://lists.wikimedia.org/mailman/listinfo/mediawiki-api-announce> for notice of API deprecations and breaking changes."},"expandtemplates":{"*":"Because \"prop\" was not specified, a legacy format has been used for the output. This format is deprecated, and in the future the new format will always be used."}}}