Fatal error: Uncaught Error: Class "GuzzleHttp\Promise\RejectionException" not found in /home/nhnesswd/app.skiri.app/application2/FCM/vendor/guzzlehttp/promises/src/AggregateException.php:10 Stack trace: #0 {main} thrown in /home/nhnesswd/app.skiri.app/application2/FCM/vendor/guzzlehttp/promises/src/AggregateException.php on line 10