How to fix error called in octave?

Question

I run elman algebra and then I saw this error

Answer 1

This error is unfixable.

Answer 2

I don't think you understood my ironical reply. It meant that your error can't be fixed because you never provided one.

Answer 3

Yes I undrestood. The code was written wrong.

Answer 4

No, there's no code. You literally just said one sentence.