some fix

kernel/modules/user/models/forms/CreateUserForm.php

@@ -16,4 +16,13 @@ class CreateUserForm extends FormModel
         ];
     }
 
+    public function rulesForUpdate(): array
+    {
+        return [
+            'username' => 'required|min-str-len:5|max-str-len:30',
+            'password' => '',
+            'email' => 'required|email'
+        ];
+    }
+
 }