Forecast - Partial autocorrelation function

Hi Forecast-community,

Currently I am stuck in a tricky, but simple problem. To estimate my forecast model (SARIMA) I need a partial autocorrelation function. I use the toolbox parcorr. My command is

[PACF,plags,pBounds]=parcorr(Series,nLags,R,nSTDs);

In general the PACF output should be between -1 and 1 but I have outputs which exceeds these boundaries.

My Questions:

Does I have an error when PACF exceeds the boundaries?

How can I fix this output?

Thanks for any help

Merten