edit card error msg

kernel/app_modules/card/controllers/CardController.php

@@ -89,6 +89,7 @@ class CardController extends AdminController
                 $this->redirect("/admin/card/" . $card->id);
             }
         }
+        Flash::setMessage("error", $cardForm->getErrorsStr());
         $this->redirect("/admin/card/update/" . $id);
     }