PA-8453 form

I filed my federeal and state.  Fed is accepted.

For state, I remember a pop up saying that for PA, paper signature is required.

Does this mean that I have to print out the form 8453 and sign it and then snail mail it through post office?

But, I see this -Sign and date Form PA-8453 within 1 day of acceptance.

I am unclear what needs to be done.

Regards,

Sankar