Fatal error: Uncaught Error: Class 'GuzzleHttp\Promise\RejectionException' not found in /var/www/html/servicios/SDKAmazon/GuzzleHttp/Promise/CancellationException.php:8 Stack trace: #0 {main} thrown in /var/www/html/servicios/SDKAmazon/GuzzleHttp/Promise/CancellationException.php on line 8