Fatal error: Uncaught Error: Class 'Aws\S3\MultipartUploader' not found in /var/www/alldocs/home/klewis/website_libs/aws_sdk/aws/Aws/S3/Crypto/S3EncryptionMultipartUploader.php:20 Stack trace: #0 {main} thrown in /var/www/alldocs/home/klewis/website_libs/aws_sdk/aws/Aws/S3/Crypto/S3EncryptionMultipartUploader.php on line 20