Filed 2022, 2023 taxes recently. How to use 2023 AGI for 2024 return?

Title. The 2022 Federal and (NC) State returns are accepted. The 2023 has also been accepted.

What I don't understand is I used my AGI off my 1040 form from 2023 that I received from H&R Block. So what's going on here? I double and triple checked it, but the first time I filed the 2024 it rejected it, I didn't file again after that. I use Tax Act if that matters (for 2024)