[Gretl-users] $irf(): excess collinearity

Dear gretl programmers, I've got an obvious issue with collinearity in my model. When I try to compute IRFs with bootstrapped confidence intervals, gretl stops and gives the following message: "Excessive collinearity in resampled datasets". This is a good hint, no question. But what is the specific criteria for gretl to stop here? Furthermore, despite of setting "set halt_on_error off", gretl stops. Btw, is there a way to obtain the analytical standard errors for the IRFs? Thank you! Artur