update

app/Http/Controllers/Admin/CourseController.php

@@ -258,7 +258,6 @@ class CourseController extends BaseController
                 $all['admin_id'] = $this->getUserId();
                 $all['department_id'] = $this->getUser()->department_id;
             }
-            $original = $model->getOriginal();
             $model->fill($all);
             $model->save();
             DB::commit();