Fatal error: Uncaught Error: Class 'GuzzleHttp\Promise\RejectionException' not found in D:\xampp7\htdocs\www\nbkm\show_ir\vendor\guzzlehttp\promises\src\CancellationException.php:7 Stack trace: #0 {main} thrown in D:\xampp7\htdocs\www\nbkm\show_ir\vendor\guzzlehttp\promises\src\CancellationException.php on line 7