I had the same issue and spent all morning on the phone on hold and looked up so many questions. Try this and see if it works.
1. go back to your information
2. double-check all the questions
my issue was that one of the questions asked if I supported myself all through 2021. I selected no.
GO BACK AND SELECT "YES". THAT WILL REMOVE THE FORM 8615 AND YOU WILL BE ABLE TO E-FILE.
