Fatal error: Uncaught Error: Class 'App\Helpers\CacheHelpers' not found in G:\projects\beta.api.edutalk.edu.vn\app\Helpers\RegisterCourse\RegisterCourseHelper.php:9 Stack trace: #0 {main} thrown in G:\projects\beta.api.edutalk.edu.vn\app\Helpers\RegisterCourse\RegisterCourseHelper.php on line 9