Fatal error: Uncaught Error: Class "Aws\S3\MultipartUploader" not found in /home2/santhos2/public_html/demo-ecom.firstmatrix.in.net/vendor/aws/aws-sdk-php/src/S3/Crypto/S3EncryptionMultipartUploaderV2.php:20 Stack trace: #0 {main} thrown in /home2/santhos2/public_html/demo-ecom.firstmatrix.in.net/vendor/aws/aws-sdk-php/src/S3/Crypto/S3EncryptionMultipartUploaderV2.php on line 20