Could be one of the following (if equipped):
Fuel filler cap, vacuum connection, fuel tank, fuel tank pressure sensor, evaporative bypass solenoid, evaporative two way valve, evaporative control canister vent shut valve, evaporative control canister and evaporative purge control solenoid.
The code just refers to the fuel system not being able to contain/dispose fuel vapor according to the ECUs programming.
Because of the complexity of the system, it may take a couple of hours and some specialized equipment to diagnose the cause.
Some of the components listed can be pricey, so be sure the right one is replaced.
You may get lucky by replacing just the gas cap.