Fatal error: Uncaught Error: Class 'Aws\Multipart\AbstractUploadManager' not found in /home/isramasar/public_html/script/vendor/aws/aws-sdk-php/src/S3/MultipartCopy.php:9 Stack trace: #0 {main} thrown in /home/isramasar/public_html/script/vendor/aws/aws-sdk-php/src/S3/MultipartCopy.php on line 9