Fatal error: Uncaught Error: Class 'Tymon\JWTAuth\Providers\AbstractServiceProvider' not found in D:\xampp\htdocs\psp\backend\vendor\tymon\jwt-auth\src\Providers\LumenServiceProvider.php:19 Stack trace: #0 {main} thrown in D:\xampp\htdocs\psp\backend\vendor\tymon\jwt-auth\src\Providers\LumenServiceProvider.php on line 19