Fatal error: Uncaught Error: Interface "GuzzleHttp\Promise\PromiseInterface" not found in D:\programs\xampp\htdocs\backend-test\vendor\guzzlehttp\promises\src\Promise.php:14 Stack trace: #0 {main} thrown in D:\programs\xampp\htdocs\backend-test\vendor\guzzlehttp\promises\src\Promise.php on line 14