1099-NEC for Teacher stipend/salary supplement, why is it making me do a Schedule C when I am not self-employed

I received a 1099-NEC for a teacher salary supplement/stipend. I am not self-employed. This was not made from work hours and was paid by a different entity that is not my employer (school at which I teach). When I enter the 1099-NEC, it prompts me to make a Schedule C for a self-employed business. I am not self employed nor do I have a business. I do not know how to proceed. Is there a box I should be checking that would fix this issue and be what I am correctly supposed to do?