Fatal error: Uncaught Error: Class 'Aws\Multipart\AbstractUploadManager' not found in /home/swamen5/smaw.centosquare.com/vendor/aws/aws-sdk-php/src/Multipart/AbstractUploader.php:10 Stack trace: #0 {main} thrown in /home/swamen5/smaw.centosquare.com/vendor/aws/aws-sdk-php/src/Multipart/AbstractUploader.php on line 10