Strange Nullexception reported from Untiy Service Performance

Hello all,

I am developing a real time multiplay racing game and recently seeing weird Nullexception from Unity performance.

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REPORTS Count: 16157
MESSAGE : NullReferenceException an hour ago
NullReferenceException
STACK TRACE
MatchingScreen.OpenMathcingScreen (Boolean matchingInOfflineMode)
MainScene.OnSuccessfulCall (NetworkFunc func, TotalEclipse.Network.NetworkParam param)
TotalEclipse.Network.GameSparks.GSClientNetwork.ReceiveGetUser (TotalEclipse.Utility.EventParam param)
......
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And following codes are where it triggered.

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// MainScene.OnSuccessfulCall

else if(func.Cat == CAT.PLAYDATA && func.Api == API.NONE)
{
NetworkManager.OpenEventBlock(false, func.FuncString);

// Showing matching screen
waitingPlayersPanel.OpenMathcingScreen(((!UserData.Data.IsNewbieEnded || !UserData.Data.IsHopelessEnded) && G.GameContext.MultiPlay.IsForNewbie));

}

// MatchingScreen.OpenMathcingScreen

public void OpenMathcingScreen(bool matchingInOfflineMode = false)
{
if (gameObject == null || gameObject.activeSelf) return;

myIsMatchingInOffline = matchingInOfflineMode;
gameObject.SetActive(true);
}

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As you can see, there are not much codes that can trigger Nullexception.

So, if anyone has similar experiences and clues, that will be very helpful.


Thanks in advance.

Danny