Fatal error: Uncaught Error: Class "Magento\Framework\Model\ResourceModel\Db\AbstractDb" not found in /home/airtimer/public_html/vendor/amzn/amazon-pay-module/Model/ResourceModel/PendingRefund.php:30 Stack trace: #0 {main} thrown in /home/airtimer/public_html/vendor/amzn/amazon-pay-module/Model/ResourceModel/PendingRefund.php on line 30