I had the same problem. TurboTax needs to describe it in English, not the programmer's variable name.
By trial and error I found:
In the interview go to Wages & Income, Business Items, Business Income and Expenses (Sch C)
Choose Update
Edit the business
Continue
Unmark estimated the business start date.
Others have found that noting the data entered, deleting the schedule, and reentering the data works.
