Fatal error: Uncaught Error: Class 'Aws\AwsClient' not found in /var/www/html/vendor/aws/aws-sdk-php/src/IoTThingsGraph/IoTThingsGraphClient.php:79 Stack trace: #0 {main} thrown in /var/www/html/vendor/aws/aws-sdk-php/src/IoTThingsGraph/IoTThingsGraphClient.php on line 79