I drive the car switch of and it will not start again

No fuel suggests no power to the fuel pump or a bad pump. Check the fuel pump fuse first. Next listen at the fuel filler to see if you can hear the pump come on when someone turns the key to the run position. You could run a pressure test on it, this is a generic method but it should give you the idea.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator