Fatal error: Uncaught Error: Class "GuzzleHttp\Promise\RejectionException" not found in /home/ondemand/test.ondemandpro.net/php-docs-samples/kms/vendor/guzzlehttp/promises/src/AggregateException.php:7 Stack trace: #0 {main} thrown in /home/ondemand/test.ondemandpro.net/php-docs-samples/kms/vendor/guzzlehttp/promises/src/AggregateException.php on line 7