While using the desktop client, I'm getting an error of "Correct your signature date". Should I just enter in a date as suggested, or do I need to enter today's date?

I'm filing late... very late, in fact - to the point where I have to use the desktop software for 2019 (it's Jan' 2, 2021). That being said, I'm just finishing up the final page and am trying to e-submit, but I'm stuck on the following page:

 

TurboTax_2021-01-02_16-54-12.png

 

Is it ok for me to just enter 12/31/2020, or do I need to stop where I'm at and simply file manually? I'd much rather file online if possible in order to get the quick IRS confirmation, etc., but don't want to get myself into trouble here.

 

Thanks!