fix '/kelastesis' when not authenticated

app/Http/Controllers/KelasTesisController.php

@@ -17,6 +17,11 @@ use Illuminate\Support\Facades\Validator;
 
 class KelasTesisController extends Controller
 {
+    public function __construct()
+    {
+        $this->middleware('auth');
+    }
+    
     public function showKelasTesis() {
         $manajer = Auth::user()->isManajer();
         if($manajer) {