Firebase Realtime Database Wont get Task Complete

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FirebaseUID = gameObject.GetComponent<SignInOnClick>().FirebaseUID;

        FirebaseDatabase.DefaultInstance

      .GetReference("users").Child(FirebaseUID).Child(platform)

      .GetValueAsync().ContinueWith(task => {

          if (task.IsFaulted)

          {

              // Handle the error...

              Debug.LogError("Handle the error...");

          }

          else if (task.IsCompleted)

          {

              DataSnapshot snapshot = task.Result;

              Debug.LogError("snapshot ");

              Debug.LogError("IsCompleted ");

              // Do something with snapshot...

          }

      });

I'm trying this basic task but I cant get any of the  task.. any idea? also trying to use handle but still wont sync