So im using the zed's tycoon kit and im trying to make a "Buy More Gold" Gui but its not working, the following script is the "DevProductHandler" that came with the Zed's DevProduct kit but somthing isnt working, can you help me?

game.StarterGui.ResetPlayerGuiOnSpawn = false
old_fog = game.Lighting.FogStart
local MarketplaceService = game:GetService("MarketplaceService")

function getPlayerFromId(id)
	for i,v in pairs(game.Players:GetChildren()) do
		if v.userId == id then
			return v
		end
	end
	return nil
end
 
MarketplaceService.ProcessReceipt = function(receiptInfo)
	local productId = receiptInfo.ProductId
	local playerId = receiptInfo.PlayerId
	local player = getPlayerFromId(playerId)
	local productName 

if productId == 1151720201 then
		local cashmoney = game.ServerStorage.PlayerMoney:FindFirstChild(player.Name)
			if cashmoney then
				cashmoney.Value = cashmoney.Value + 1000
		end
		
		elseif productId == 1151720238 then
			local cashmoney = game.ServerStorage.PlayerMoney:FindFirstChild(player.Name)
			if cashmoney then
				cashmoney.Value = cashmoney.Value + 500
		end
		
	elseif productId == 1151721596 then
		local cashmoney = game.ServerStorage.PlayerMoney:FindFirstChild(player.Name)
		if cashmoney then
			cashmoney.Value = cashmoney.Value + 5000
		end
		
	elseif productId == 1151721802 then
		local cashmoney = game.ServerStorage.PlayerMoney:FindFirstChild(player.Name)
		if cashmoney then
			cashmoney.Value = cashmoney.Value + 10000
		end
		
	elseif productId == 1151722029 then
		local cashmoney = game.ServerStorage.PlayerMoney:FindFirstChild(player.Name)
		if cashmoney then
			cashmoney.Value = cashmoney.Value + 50000
		end
Anonymous