First, is this in the Review?
Second, are you trying the Annualization Method to reduce your underpayment of estimated tax penalty?
Also, can you show us a screenshot of this message (with any personal information redacted)? It's difficult for us to reconstruct error messages if we don't know how you got there. If we can see it, then that may help.
Also, it is a general rule, that if the Review spots something and asks you to make a correction on the screen, it i generally a good idea to go back to the original input screen and make the entry there. Can you try that?
This didn't help. Finally, I hit on a great solution by myself - I just deleted the Form 2210. To do this, go to "Tools" on the menu on the left side of the screen then select "Delete a form." When the list of forms appears, scroll down to Form 2210 and click on the "delete" link. After I did this, I was able to complete the review and successfully e-file. Good luck!