Works in studio but not in-game.. Help?

The scripts kicks players when f2 is pressed

function onKeyPress(inputObject, gameProcessedEvent)
    if inputObject.KeyCode == Enum.KeyCode.F2 then
    for z, x in pairs(game.Players:GetPlayers()) do 
    x:Kick()
end
end
end
 game:GetService("UserInputService").InputBegan:connect(onKeyPress)