Camera and Flashlight not working

I have an iPhone X, it has been dropped and the screen is cracked. My front facing and rear camera had stopped working yesterday. The rear camera and flashlight now works but not my front facing camera. It’s not the screen cause I have this happened 3 other times and it went back to normal but now it’s not. I don’t know what the problem is or how to fix it. I tried everything but It keeps happening!