Fatal error: Uncaught Error: Class "Magento\Framework\Api\AbstractSimpleObject" not found in /var/www/magento/html/app/code/BBNT/FredhopperDataProxy/Model/Request/ProductListRequest.php:13 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/BBNT/FredhopperDataProxy/Model/Request/ProductListRequest.php on line 13