If you are seeing that message, it means the parking brakes test in the airplane profile you are using is not correct, no questions about it?
Have you possibly merged the LVFR A320 with FBW? If yes, it's possible the parking brake test has changed, so the one in the profile is no longer valid, which might have been made for the stock LVFR airplane. Or, the opposite, the profile might have been made for the FBW-merged version, so it might not work with the default version, if that's what you have.