Case_Origin cannot be empty.

When saving the field mappings I get an orange error box near the top that says: “Case_Origin cannot be empty. Please map it with Contact Form field. Status cannot be empty. Please map it with Contact Form field.”

It wouldn’t make sense to allow a user to choose the case origin or case status. Hidden fields don’t seem to allow mapping. The question is: I really MUST show these on the front-end field? Help. I can’t save my field mappings because of this error.