You will have to delete the Form 2555: Foreign Earned Income and any associated worksheets that carried over from your 2016 tax file.
See: How
do I delete forms in TurboTax Online?
After deleting that form and any associated worksheets , log out of the
program. When you log back in, use the Delete a Form tool (List of Forms
in My Return) to confirm they have been removed
from your return.