We have an S corp, and the taxes have already been filed. Why is Turbotax trying to fill out a schedule C? We had a net loss last year.

My specific question relates to Section L on schedule C.  I'm getting a reminder that it needs attention.  I've already had an accountant file the business tax this year so I could determine net gain (loss) in order to report on our personal taxes.  This is the 1st time I've used Turbotax.