It doesn't reference anything. I have no idea what is supposed to be entered here. Last year I had won a contest and had to report the prize value, but it didn't ask me anything about that this year, so I have no option to "delete" that. But the Check This Entry doesn't reference anything, so I have no idea what it's talking about, but it's keeping me from proceeding.
Go down to the 'Other Taxable Income' section where you entered the winnings last year. The system has carried the description over from last year. You need to delete the description that you wrote last year and that should fix your problem.
@RobertB4444 I saw that as a solution on another post, but when I expand every single category under "Your Income" shown below (there is no "Other Taxable Income" section), there is nothing that could be deleted, as there is nothing entered. They all show "Start". The ones that show "Revisit" only have info that I've entered for this year.