Fatal error: Uncaught Error: Interface 'GuzzleHttp\Promise\PromiseInterface' not found in E:\xampp\htdocs\webhost_v3\vendor\guzzlehttp\promises\src\FulfilledPromise.php:11 Stack trace: #0 {main} thrown in E:\xampp\htdocs\webhost_v3\vendor\guzzlehttp\promises\src\FulfilledPromise.php on line 11