1099-K and schedule C

I got a 1099-K from paypal for a side gig. No business name. I filled in the 1099-K info on turbo tax. When I get to the end of my return it tells me all the forms that need to be submitted before I can file. One of them is the schedule C is not ready. How can  that happen if the schedule C is part of my return? Do I have to submit a schedule C somewhere else prior to my return? It's not really a business.