Fatal error: Uncaught Error: Interface 'GuzzleHttp\Promise\PromisorInterface' not found in /home/kubalos2/public_html/testtestowy/vendor/aws/aws-sdk-php/src/Multipart/AbstractUploadManager.php:21 Stack trace: #0 {main} thrown in /home/kubalos2/public_html/testtestowy/vendor/aws/aws-sdk-php/src/Multipart/AbstractUploadManager.php on line 21