Can't get rid of "The steady state has NaNs or Inf."

Steady state
1

Hello,
As beginner I was trying to replicate one paper to estimate output gap. But I am getting “The steady state has NaNs or Inf.” error and I am unable to understand why it is happening.
Could you please take a look at the mode file?

Best,
Debojyoti
prod_func_growth_ac.mod (4.4 KB)

2

Does it need data to run?

3

Yes. Attached the excel file.
data250223.xlsx (15.9 KB)

4

Please to provide an exact steady state. Your model is linear but contains some constant terms. You need to properly account for them.