[Help] Not Working Why?

Remote Function

Everything have been fixed without any error. But then problems is the currency doesnt add into players currency

--Client
local TextBox = script.Parent.TextBox
local Button = script.Parent.RedeemButton

Button.MouseButton1Click:Connect(function()
	local Code = TextBox.Text
	local redeem = game.ReplicatedStorage.RemoteFuntion:InvokeServer(Code)
	if redeem == true then
		TextBox.Text = " "
		TextBox.PlaceholderText = "Success"
		wait(0.5)
		TextBox.PlaceholderText = "Text Here"
	else
		TextBox.Text = " "
		TextBox.PlaceholderText = "Invalid"
		wait(0.5)
		TextBox.PlaceholderText = "Text Here"
	end
end)

Why it doesnt work?

--Server

local DataService = game:GetService("DataStoreService")

local ListCode = {
	TestCode = {"Money", 2500},
	Code2020 = {"Money", 2020}
}

game.ReplicatedStorage.RedeemCode.OnServerInvoke = function(plr, Code)
	local players = game.Players:FindFirstChild(plr.Name)
	local CodeStore = DataService:GetDataStore("CodeStore" .. Code)
	local plrRedeem = CodeStore:GetAsync(players.UserId)
	if ListCode[Code] and not plrRedeem then
		local statsName = ListCode[Code][1]
		local amtValue = ListCode[Code][2]
		local statsValue = players.leaderstats[statsName].Value
		statsValue = statsValue + amtValue
		CodeStore:SetAsync(players.UserId, true)
		return true
	else
		return false
	end
end