Error when i compute

I have a problem when i try to compute my .mod file on matlab. 4 errors occurs:

Warning: Matrix is singular to working precision.

In resol at 116
In stoch_simul at 66
In programmation at 262
In dynare at 132

??? Error using ==> print_info at 36
MJDGGES returns the following error code: 14

Error in ==> stoch_simul at 71
print_info(info, options_.noprint);

Error in ==> programmation at 262
info = stoch_simul(var_list_);

Error in ==> dynare at 132
evalin(‘base’,fname) ;

I’m debutant with dynare and matlab, and i don’t know what it means…
Thanks for helping…

Most likely there is an undeterminacy in your model. Please post your MOD file if you want more help.