i need to run a background operation on a ASP.NET 4.8 website placed in IIS, this is how i do it

  public static void AddTaskToClient(int taskId, int clientId)
  {
      var t = new Task(async () => 
      {
          try
          {
              MyGlobalStorage[taskId].Status = StatusEnum.Running;

              ResultsResponse res;
              using (var wcf = new RfsnCallBack())
                  res = await wcf.CallWithCBAsync(() => wcf.client.ReadFilesAndSendNotificationsToClient(clientId));

              MyGlobalStorage[taskId].ResultData = res;
              MyGlobalStorage[taskId].Status = StatusEnum.Done;
          }
          catch (Exception ex)
          {
              MyGlobalStorage[taskId].Error = $"Failed to processing (clientId: {clientId}): {ex.Message}";
              MyGlobalStorage[taskId].Status = StatusEnum.Failed;
          }
      });

      HostingEnvironment.QueueBackgroundWorkItem(ct => t);
  }

but the task never starts this way. How to solve this?