The steps outlined are not meant to all be done. But, they are meant to be tried in order.
First, try leaving the cell blank.
If that does not resolve the error, try entering 0.
Only if that does not resolve the error, then proceed through the other options one at a time.
If the taxpayer does wish to defer a portion of the self-employment taxes due, then enter the fraction of earnings that were made from March 27 through December 31, 2020. 50% of the tax calculated can be deferred.
However, these filers would not have an issue unless they were initially eligible for a self-employment tax deferral, but as the rest of the details were entered, became ineligible.
@DKinSB
