diff --git a/ConfigureTool/TabControlDemo.xaml.cs b/ConfigureTool/TabControlDemo.xaml.cs
index dce69f1..2b99c91 100644
--- a/ConfigureTool/TabControlDemo.xaml.cs
+++ b/ConfigureTool/TabControlDemo.xaml.cs
@@ -314,6 +314,10 @@ public partial class TabControlDemo : Window
                 content = FileEncrypterDecrypter.DecryptFile(filename, "000000");
             }
         }
+        else
+        {
+            return;
+        }
         JsonEntity info = JsonConvert.DeserializeObject<JsonEntity>(content);
         if (info != null)
         {