Fatal error: Uncaught Error: Class "Magento\Framework\App\Helper\AbstractHelper" not found in /home/airtimer/public_html/vendor/amzn/amazon-pay-and-login-with-amazon-core-module/Helper/Data.php:39 Stack trace: #0 {main} thrown in /home/airtimer/public_html/vendor/amzn/amazon-pay-and-login-with-amazon-core-module/Helper/Data.php on line 39