Add MonIn

Server/Controllers/ExportController.cs

@@ -77,6 +77,8 @@ public class ExportController : Controller
                 ModelState.AddModelError("Exception", ex.Message);
                 string errorMessage = $"Error exporting: {ex}";
                 _Logger.LogError(message: errorMessage);
+                MonIn monIn = MonIn.GetInstance();
+                _ = monIn.SendStatus(_AppSettings.MonASite, _AppSettings.MonAResource, "Heartbeat", State.Warning);
             }
         }
         return View("Index", model);