Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in C:\xampp\htdocs\kotsch.tech\kotsch-tech\app\Http\Controllers\Api\Admin\ProblemRadarController.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\kotsch.tech\kotsch-tech\app\Http\Controllers\Api\Admin\ProblemRadarController.php on line 20