Name change using !name [text]

function onChatted(message, player)
    if message:sub(1, 5) == "Name/" or message:sub(1, 5) == "name/" then
    local hi = player.Character

local rank = hi:WaitForChild("Rank")
rank.Frame.Name1.Text = (message:sub(6))
end
end

game.Players.PlayerAdded:connect(function(player)
    player.Chatted:connect(function(message) onChatted(message, player) end)
end)