Argument 1 missing or nil?

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1

my script keeps turning up with an error saying argument 1 missing or nil? any help?

SS

game.ReplicatedStorage.Events:FindFirstChild("CharSel").OnServerEvent:Connect(function(player,name)
	local skin = game.ReplicatedStorage.Skins:WaitForChild(name) ---- error
	local desc = skin:WaitForChild(skin.Name)
	print("character selected")
	player.Character:FindFirstChild("Humanoid"):ApplyDescription(desc)
end)

LS

player:FindFirstChild("stats"):FindFirstChild("CharSel"):GetPropertyChangedSignal("Value"):Connect(function()
	local name = player:FindFirstChild("stats"):FindFirstChild("CharSel").Value
	game.ReplicatedStorage.Events.CharSel:FireServer(function(name)
	end)
	end)
2

Should be

game.ReplicatedStorage.Events.CharSel:FireServer(name)