Fatal error: Uncaught Error: Class "Magento\SalesRule\Model\Validator" not found in /var/www/magento/html/app/code/BBNT/SalesRule/Model/Validator.php:32 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/BBNT/SalesRule/Model/Validator.php on line 32