Fatal error: Uncaught Error: Interface "GuzzleHttp\Promise\PromisorInterface" not found in /home/itwerx/public_html/vendor/aws/aws-sdk-php/src/S3/ObjectCopier.php:18 Stack trace: #0 {main} thrown in /home/itwerx/public_html/vendor/aws/aws-sdk-php/src/S3/ObjectCopier.php on line 18