Fatal error: Uncaught Error: Class "Aws\Api\Serializer\RestSerializer" not found in /home/digitalproduct/public_html/projectmanagementsoftware/vendor/composer/1b1eef6f/aws-aws-sdk-php-5678539/src/Api/Serializer/RestJsonSerializer.php:11 Stack trace: #0 {main} thrown in /home/digitalproduct/public_html/projectmanagementsoftware/vendor/composer/1b1eef6f/aws-aws-sdk-php-5678539/src/Api/Serializer/RestJsonSerializer.php on line 11