Fatal error: Uncaught Error: Interface 'Http\Promise\Promise' not found in C:\xampp\htdocs\com.arbokcorp.app\vendor\php-http\httplug\src\Promise\HttpFulfilledPromise.php:9 Stack trace: #0 {main} thrown in C:\xampp\htdocs\com.arbokcorp.app\vendor\php-http\httplug\src\Promise\HttpFulfilledPromise.php on line 9