Why Wont My Chat Gui Work??? [closed]

game:GetService("Players").PlayerAdded:connect(function(player)
player.Chatted:connect(function(msg)
for _, v in ipairs(game:GetService("Players"):GetChildren()) do
for _, oldmsg in ipairs(v:WaitForChild("PlayerGui").ChatGui.MsgBoard) do
oldmsg.Position = oldmsg.Position - UDim2.new(0, 0, 0, 15)
end
newmsg = Instance.new("TextLabel", v:WaitForChild("PlayerGui").ChatGui.MsgBoard)
newmsg.Text = player.Name..": "..msg
newmsg.Position = UDim2.new(0, 0, 1, -17.5)
newmsg.TextColor3 = Color3.new(0, 0, 0)
newmsg.TextStrokeTransparency = 0
newmsg.BackgroundTransparency = 1
newmsg.BorderSizePixel = 0
 newmsg.FontSize = "Size24"
newmsg.TextXAlignment = "Left"
newmsg.TextYAlignment = "Top"
newmsg.ClipsDescendants = true
end
end)
end)