Estimation problems of "Matrix must be positive definite"

Estimation ML/Bayesian estimation
3

Dear professor,
I have the same problem with “error using chol”, but my data is detrended by HP filter. Do you have any suggestions?
data_prep.m (3.5 KB)
projekt_mamo.xlsx (21.4 KB)
projekt_rekurze.mod (8.9 KB)
y.mat (37.7 KB)