Fatal error: Uncaught Error: Class "Aws\Multipart\AbstractUploader" not found in /usr/www/hidweb/ocstorage/vendor/aws/aws-sdk-php/src/S3/MultipartUploader.php:15 Stack trace: #0 {main} thrown in /usr/www/hidweb/ocstorage/vendor/aws/aws-sdk-php/src/S3/MultipartUploader.php on line 15