Fatal error: Uncaught Error: Class "Aws\AwsClient" not found in C:\WebServer\htdocs\bookshelf\vendor\aws\aws-sdk-php\src\S3Tables\S3TablesClient.php:81 Stack trace: #0 {main} thrown in C:\WebServer\htdocs\bookshelf\vendor\aws\aws-sdk-php\src\S3Tables\S3TablesClient.php on line 81