add notification exception handling

EnvyUpdate/Notify.cs

@@ -5,10 +5,17 @@ namespace EnvyUpdate
     internal class Notify
     {
         public static void ShowDrivUpdatePopup()
+        {
+            try
             {
                 var toast = new ToastContentBuilder();
                 toast.AddText(Properties.Resources.update_popup_message);
                 toast.Show();
             }
+            catch (System.Exception ex)
+            {
+                Debug.LogToFile("WARN Could not show notification. Error: " + ex.Message);
+            }
+        }
     }
 }