Fatal error: Uncaught Error: Class 'Aws\S3\MultipartUploader' not found in /home/edmedu/www/agentportalservice.com/dev/vendor/aws/aws-sdk-php/src/S3/Crypto/S3EncryptionMultipartUploaderV2.php:20 Stack trace: #0 {main} thrown in /home/edmedu/www/agentportalservice.com/dev/vendor/aws/aws-sdk-php/src/S3/Crypto/S3EncryptionMultipartUploaderV2.php on line 20