To debug errors in your user routines, you can use commands not documented in the Command Reference. Use these commands only for extremely small models with few solution iterations (otherwise, they will generate an excessive amount of output).
Two useful commands are OUTEQ and /NERR. The command OUTEQ,ON can be used to output results from all equilibrium iterations. The command /NERR,,,-1 causes errors to be reported as before, but the run continues anyway, normally terminating with either a) system abort or b) incorrect answers. The /NERR,,,-1 command is intended for program debugging and may generate erroneous results. You should remove this statement before generating solutions for production use.