Tenant keeps breaking screens

[Melissa N.]

When we rented the property I know the screen door was fine but the tenant reported it was broken. Since I didnt have a picture, I sent someone to fix it. They came did a few things including the screen. A few days later the tenant complained the screen was broken again and wants it repaired. 

I know, I should have told her she needed to fix it in the first place bc I know my dog messed it up a few times and her dog is probably doing the same. But, what now?