Error Message Trust K-1 Statement A

Hi

I have a Trust K-1 and am getting an unclear Error message in the final check.

"Box code 14 Code I has been selected but no Section 199A income has been entered in Statement A"

 

The question is:

Where do I find "Statement A" so I can fix this? What shows up in the error message is the Schedule K-1 Worksheet (1041) form, which shows the Box 14 entry with Code I.