Fatal error: Uncaught Error: Interface 'Http\Promise\Promise' not found in C:\xampp\htdocs\com.arbokcorp.app\vendor\php-http\guzzle6-adapter\src\Promise.php:17 Stack trace: #0 {main} thrown in C:\xampp\htdocs\com.arbokcorp.app\vendor\php-http\guzzle6-adapter\src\Promise.php on line 17