My child won't do her homework. She's flunking out of elementary school.

First of all... there's no homework. I have to buy it. Then,  I find it in my bookshelf and tell my child to do her homework, and she immediately puts it on the desk and it becomes inactive. I click on it and it just says "homework", not "do homework". There's no way to have her do it. Any suggestions? PS5, btw.