Redemption Code Help?

I made some code and code module but i wan to make it able to add mney to the leaderboard when they redeem it i tried but i ended up breaking the whole script

Module:

local codes = {
	["supercode"] = function(player)
		print(player.Name .. " entered a code!")
	end,
	["examplecode"] = function(player)
		print("this example code was redeemed by " .. player.Name)
	end,
	["mlg_swag_360"] = function(player)
		print(player.Name .. " is mlg!!!1!11!")
	end
}

return(codes)

Script:

local codes = require(game.ServerStorage.Codes)

local usedCodes = game:GetService("DataStoreService"):GetDataStore("UsedCodes")

local function IsInTable(t, thing)
	for i, v in pairs(t) do
		if v == thing then
			return(true)
		end
	end
	return(false)
end

game.Players.PlayerAdded:connect(function(player)
	if player.userId > 0 then
		local pCodes = usedCodes:GetAsync("user_" .. player.userId)
		if not pCodes then
			usedCodes:SetAsync("user_" .. player.userId, {})
		end
	end
end)

function game.ReplicatedStorage.RedeemCode.OnServerInvoke(player, code)
	if player.userId > 0 then
		code = string.lower(code)
		if codes[code] then
			local pCodes = usedCodes:GetAsync("user_" .. player.userId)
			if pCodes then
				if not IsInTable(pCodes, code) then
					table.insert(pCodes, code)
					usedCodes:SetAsync("user_" .. player.userId, pCodes)
					codes[code](player)
					return true, "Success!"
				else
					return false, "You've already redeemed that code."
				end
			end
		else
			return false, "Invalid code."
		end
	end
	return false, "Sorry, guests can't redeem codes."
end