Fatal error: Uncaught Error: Interface 'GuzzleHttp\Promise\PromisorInterface' not found in /home/wwvicp/public_html/API2/vendor/aws/aws-sdk-php/src/CommandPool.php:14 Stack trace: #0 {main} thrown in /home/wwvicp/public_html/API2/vendor/aws/aws-sdk-php/src/CommandPool.php on line 14