Fatal error: Uncaught Error: Class "Magento\Framework\Controller\Result\Json" not found in /var/www/magento/html/app/code/BBNT/FredhopperDataProxy/Helper/JsonResult.php:12 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/BBNT/FredhopperDataProxy/Helper/JsonResult.php on line 12