Fatal error: Uncaught Error: Class "Aws\AwsClient" not found in C:\xampp\htdocs\addfirst\vendor\aws\aws-sdk-php\src\QApps\QAppsClient.php:57 Stack trace: #0 {main} thrown in C:\xampp\htdocs\addfirst\vendor\aws\aws-sdk-php\src\QApps\QAppsClient.php on line 57