How long has it been doing that? If it’s not the computer those files originated on it could be that someone deauthorized all computers from their account and now you have to reauthorize. If that’s the case, it should go away after a few times. Mine used to only need it done once, now I have to authorize like four times and it’s good. If that’s not the case, restart the program, restart the computer, if that fails, contact apple.