Fatal error: Uncaught Error: Class 'GuzzleHttp\Promise\RejectionException' not found in G:\projects\beta.api.edutalk.edu.vn\vendor\guzzlehttp\promises\src\CancellationException.php:10 Stack trace: #0 {main} thrown in G:\projects\beta.api.edutalk.edu.vn\vendor\guzzlehttp\promises\src\CancellationException.php on line 10