Problem in Bayesian estimation

Sentiment2.mod (5.7 KB)
I do not think I am faced with the identification problem in new files. But I did not understand your meaning about error code and data treatment. I have no trouble in stoch_simul, and the model_diagnostics does not show anything, and I only have a problem in estimation. What is your opinion on these two questions?

Also, if I understand correctly, you said in another post (Performing an estimation of parameters using real data) (24th reply) that the mean of the data should be equal to the mean of the corresponding model variable in the steady state, right? But there is a lot of difference for me.

Should I change the initial parameter values?

Can the problem be fixed by adding the measurement error to the observation equation?
(A Guide to Specifying Observation Equations for the Estimation of DSGE Models)