Fatal error: Uncaught Error: Class "Aws\Api\Serializer\AbstractRpcV2Serializer" not found in /home/rooti/public_html/test1644/vendor/aws/aws-sdk-php/src/Api/Serializer/RpcV2CborSerializer.php:18 Stack trace: #0 {main} thrown in /home/rooti/public_html/test1644/vendor/aws/aws-sdk-php/src/Api/Serializer/RpcV2CborSerializer.php on line 18