If my extension application repeatedly "hits a snag", is there another way to proceed?

Today is May 18, 2021 and past the date you can file an extension. Extensions are allowed through May 17, 2021.

Qualifying for the Extension: To get the extra time, you must:

1. Properly estimate your 2020 tax liability using the information available to you,
2. Enter your total tax liability on line 4 of Form 4868, and
3. File Form 4868 by the regular due date of your return.

ratz..

thnx  @HelenC12