A problem about steady state

I build a DSGE model based on a paper, but there are some problems about my code, here are the errers. Could you help me find the mistakes in my code, please? Thanks a lot.gaoran.mod (1.9 KB)

Using 64-bit preprocessor
Starting Dynare (version 4.5.3).
Starting preprocessing of the model file …
Found 21 equation(s).
Evaluating expressions…done
Computing static model derivatives:

  • order 1
    Computing dynamic model derivatives:
  • order 1
  • order 2
    Processing outputs …
    done
    Preprocessing completed.

Residuals of the static equations:

Equation number 1 : 0
Equation number 2 : NaN
Equation number 3 : 0
Equation number 4 : 0
Equation number 5 : 0
Equation number 6 : 0
Equation number 7 : 0
Equation number 8 : 0
Equation number 9 : 0
Equation number 10 : 0
Equation number 11 : 0
Equation number 12 : 0
Equation number 13 : 0
Equation number 14 : 0
Equation number 15 : 0
Equation number 16 : 0
Equation number 17 : 0
Equation number 18 : 0
Equation number 19 : 0
Equation number 20 : 0
Equation number 21 : 0

Residuals of the static equations:

Equation number 1 : NaN
Equation number 2 : NaN
Equation number 3 : NaN
Equation number 4 : NaN
Equation number 5 : NaN
Equation number 6 : NaN
Equation number 7 : NaN
Equation number 8 : NaN
Equation number 9 : NaN
Equation number 10 : NaN
Equation number 11 : NaN
Equation number 12 : NaN
Equation number 13 : NaN
Equation number 14 : NaN
Equation number 15 : NaN
Equation number 16 : NaN
Equation number 17 : NaN
Equation number 18 : NaN
Equation number 19 : NaN
Equation number 20 : NaN
Equation number 21 : NaN

print_info (line 90)
The steady state contains NaN or Inf

steady (line 104)
print_info(info,options_.noprint, options_);

gaoran (line 347)
steady;

dynare (line 223)
evalin(‘base’,fname) ;

The definition

QLLHY=CHY*(j/(1+t-betah));

has a lowercase j that is not defined. Similarly in your second equation.