Remove Autocorrelation and heteroskedasticity of a time series regression model

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Hi,

I have some problems of autocorrelation (serial correlation) and heteroskedasticity in a regression model but I don't know how to remove it. I read on the net that we have to use the Newey-West estimator but I don't know how the way to use it on Shazam.

Thanks a lot,

Brice