Retirement tax questions

We forgot to take the RMD on an inherited IRA in 2019.  We took it late, in 2020, when we realized the mistake.

 

Since we didn't take the RMD in 2019, we don't have a 1099-R to report on the tax return for 2019.  But we need to report that we didn't take the RMD and include form 5329.  In the explanation, it says to click continue on the 1099-R page, but that doesn't seem to work if you didn't receive a 1099-R and have no data to input.

 

I'm trying to understand how to complete the 5329 without a 1099-R, to calculate the appropriate penalty and/or be able to waive the penalty, which I hope is an option.

 

Can you help?