Fatal error: Uncaught Error: Class 'Aws\Multipart\AbstractUploader' not found in /home/swamen5/smaw.centosquare.com/vendor/aws/aws-sdk-php/src/Glacier/MultipartUploader.php:16 Stack trace: #0 {main} thrown in /home/swamen5/smaw.centosquare.com/vendor/aws/aws-sdk-php/src/Glacier/MultipartUploader.php on line 16