Fatal error: Uncaught Error: Class 'Aws\S3\MultipartUploader' not found in /home/kubalos2/public_html/testtestowy/vendor/aws/aws-sdk-php/src/S3/Crypto/S3EncryptionMultipartUploader.php:15 Stack trace: #0 {main} thrown in /home/kubalos2/public_html/testtestowy/vendor/aws/aws-sdk-php/src/S3/Crypto/S3EncryptionMultipartUploader.php on line 15