iPhone camera

iPhone 11 camera. I dropped it on the floor today and now the front camera doesn’t work. There is no damage on the outside. Whenever I go into camera and try to swap cameras it’s just black. The front camera works fine. On top of that whenever I open Snapchat after swapping it, it opens but then immediately closes. I have to uninstall it and reinstall to get it working again. What should I do?