Fatal error: Uncaught Error: Class "Aws\Multipart\AbstractUploadManager" not found in /home/alotaishan/public_html/ots001/vendor/aws/aws-sdk-php/src/Multipart/AbstractUploader.php:10 Stack trace: #0 {main} thrown in /home/alotaishan/public_html/ots001/vendor/aws/aws-sdk-php/src/Multipart/AbstractUploader.php on line 10