[MSNoise] Error to run compute_cc

Dear all, When I run Compute_cc the terminal show this message: File "s03compute_cc.py", line 313, in <module> X0 = s1.X AttributeError: 'NoneType' object has no attribute 'X' ?In which way can I fix it?? The attribute X, Y and also Z exits in the table and I also populate it. So I don't understand this type of error. thank you very much. I hope to receive some answer.. cheers, Carmelo The University of Aberdeen is a charity registered in Scotland, No SC013683. Tha Oilthigh Obar Dheathain na charthannas clàraichte ann an Alba, Àir. SC013683.