Asking question about IRF of Bayesian model

Hi all
I am conducting a research about monetary policy using DSGE Bayesian model
everything is working well and all results looks quite reasonable, except for the Bayesian IRF of monetary shocks. IRF of this shocks seems to appear without confident bank.
I am attempting to adjust other option to make it better but nothing change. It just happends to monetary shocks.
Someone suggest me about problems I encounter as well as some idea to improve and overcome it.
All helps are appreciated

Sorry, but the datafile is missing.