Mortgage Interest Error "DeductibleMortgageIntlndrAmt is too small

Hello, I am using Turbo Tax Home and Business. I entered my mortgage interest under the Business Home Office Deduction section.  My mortgage interest amount for 2023  is $3471. I've gone through the entire program for Federal taxes and when I have Turbo Tax search for errors, it gives me this one error:

It tells me to check an entry for Schedule C form 8829 and it says "DeductibleMortgageIntlndrAmt is too small. " It shows form 8829 line 10 "Deductible mortgage interest". My entry of $3471 is highlighted  and shows up as a negative number. Turbo Tax does not let me edit the number. 

Is this number supposed to show up as a negative number here?

Is this just saying that I don't have enough interest to deduct in order to itemize? (I already knew that, but I can still deduct some of it through my home office deduction) Why does it prompt me to correct it yet not allow me to change it?