Reference to non-existent field 'full_rank'

Hi, I have a loop in my mod file which works for certain values. However, when I increase the range of values for the loop I get the following message. Could anyone please help to interpret this message?

Thank you.

Reference to non-existent field ‘full_rank’.

Error in check (line 89)
if (nyf== n_explod) && (dr.full_rank)

Error in LR_2018_04 (line 674)
oo_.dr.eigval = check(M_,options_,oo_);

Error in dynare (line 120)
evalin(‘base’,fname) ;

Are you using the most recent Dynare version? If yes, I would need to see the codes

Thanks for the reply Johannes. No, I’m using version 4.3.3. I’ll try the most recent version then. Thank you.