Fatal error: Uncaught Error: Class "Aws\S3\MultipartUploader" not found in /home2/celtixg1/public_html/script/vendor/aws/aws-sdk-php/src/S3/Crypto/S3EncryptionMultipartUploaderV3.php:22 Stack trace: #0 {main} thrown in /home2/celtixg1/public_html/script/vendor/aws/aws-sdk-php/src/S3/Crypto/S3EncryptionMultipartUploaderV3.php on line 22