Fatal error: Uncaught Error: Class 'GuzzleHttp\Promise\RejectionException' not found in /home/xcddwtvp/public_html/aws-sdk-php/GuzzleHttp/Promise/AggregateException.php:10 Stack trace: #0 {main} thrown in /home/xcddwtvp/public_html/aws-sdk-php/GuzzleHttp/Promise/AggregateException.php on line 10