If you are saying that you didn't make any payments to a nanny in 2023, then it sounds like a Schedule H-T transferred over from 2022, and you don't need it. You can delete that form from your return.
Follow the steps shown in this TurboTax Help Article. On the screen Review Form List, scroll down to Schedule H-T and click Delete.
After that, you won't be getting any more error messages about this form.