Each time you file for a new Advance Parole authorization, you must be physically present in the U.S. when the application is filed and received by the USCIS.

It means you must enter the U.S. before your AP expiration date March 24, 2020, to apply for a new AP.

Now if you read the March 20, 2020 Notice of USCIS Announces Flexibility, there is no help for you.

And on March 14, 2020, the fourth-time travel ban notice from Trump, but travel from Nepal was not restircted till that time.

Good luck!!