The retirement savings contribution credit is normally the result of an entry in box 12 of your W-2 form for code D "elective deferrals to section 401-K". It is based on your contribution to a retirement account.
You could leave that input out of your W-2 entry and it may resolve your issue.
You may need to delete form 8880 after you update the W-2 entry as follows:
- Tax tools (on the left menu bar)
- Tools
- Delete a form
Find form 8880 in the list and delete the form.