Fatal error: Uncaught Error: Class "Amasty\Rules\Model\Rule\Action\Discount\AbstractSetof" not found in /var/www/magento/html/app/code/Amasty/Rules/Model/Rule/Action/Discount/SetofPercent.php:18 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/Amasty/Rules/Model/Rule/Action/Discount/SetofPercent.php on line 18