Fatal error: Uncaught Error: Interface "Amazon\Core\Client\ClientFactoryInterface" not found in /home/airtimer/public_html/vendor/amzn/amazon-pay-and-login-with-amazon-core-module/Client/ClientFactory.php:32 Stack trace: #0 {main} thrown in /home/airtimer/public_html/vendor/amzn/amazon-pay-and-login-with-amazon-core-module/Client/ClientFactory.php on line 32