Codes P0300, P0304 P0463 pop up symptoms are rough idle, engine light on, loss of power?

Question

These codes also pop up P0304 and P0303. All spark plugs and Ignition coils in all cylinders have been replaced. And Throttle body cleaned. Camshaft Position Sensor replaced. Then a code popped up that said P0463 which it says it has to do with the fuel level sensor in the gas tank, I had gotten a letter from the company that this sensor is faulty, I just use the computer to let me know how much gas I have used and keep track of when I fill it. Is it ok to just leave that sensor operating that way? Its a big process involving taking the gas tank apart and no one in my area will do it .