1099-NEC confusion

I have a child that has received a 1099-NEC for working at a outreach center packaging food.  She is a full time student in college.  She just turned 21 this month.  I am currently filling out her tax forms and it is now saying that she owes approx. $300 as a self-employed business owner????  Why is my software labeling her as a business owner just because the place where she worked for the summer reported her information on a 1099-NEC?  IT will not allow me to place her on my taxes because this is considered "Earned Income"  Please give me some insight on how to complete her/my tax forms where it's not asking her to pay taxes.  Her overall income is under $5000.

 

Thanks in advance for your help!