How to get facetime back on my iphone 5?

My facetime randomly disappeared… How do i fix it? It doesn't show up in settings or when i click on a contact the facetime button doesn't show up

It's simply under settings. Then go to FaceTime and turn it on. If it doesn't appear that means there's a restriction set up where you can't access it. In that case go to settings, general, restrictions, allow for FaceTime use by enabling it, of course you will need the pass code.