What is the issue inside of my datastore script?

So basically for my game, I wanted to have a feature where you would buy a hat, and it would save. In line 16 of the script, there is a error I can't determine. If you are able to help, that would be very nice.

local DataStoreService = game:GetService("DataStoreService")
local PWStore = DataStoreService:GetDataStore("2602-2")


game.Players.PlayerAdded:Connect(function(player)
	local CHat = Instance.new("StringValue")
	CHat.Name = "CurrentHat"
	CHat.Parent = player
	
	local Data
	local success, errormessage = pcall(function()
		Data = PWStore:GetAsync(player.UserId.."-Hat")
	end)
	
	if success then
		CHat.Value = Data
	else
		warn("There was an error getting data.")
		print(errormessage)
	end
end)

game.Players.PlayerRemoving:Connect(function(player)
	local success, errormessage = pcall(function()
	PWStore:SetAsync(player.UserId.."-Hat",player.CHat.Value)
	end)
	
	if success then
		print("Data Saved!")
	else
		warn("There was an error saving data.")
		print(errormessage)
	end
end)