Business & farm

Trying to help my dad and he is having the same issue.  On 2 of his K-1's there is an amount in Box 20 - code Z.  But I keep getting an error ""Box 20 Code Z has been selected but no Section 199A income has been reported in Statement A." 

I have tried multiple things to resolve this error with no luck and until I fix it, he can't file.  Any other suggestions?  Thanks!