How would I make this FE Compatible?

Spawn(function()
		while true do
			for i = 300, 1, -1 do
				if Timer then
					Timer.Text = ("d:d"):format(math.floor(i/60), i - (math.floor(i/60) * 60))
				end
				wait(1)
			end
			if Money then
				local AddAmt = 100
				if Game:GetService("MarketplaceService"):PlayerOwnsAsset(Player, 171516442) or Game:GetService("MarketplaceService"):PlayerOwnsAsset(Player, 171517130) then
					AddAmnt = 600
				end
				if Game:GetService("MarketplaceService"):PlayerOwnsAsset(Player, 171516583) or Game:GetService("MarketplaceService"):PlayerOwnsAsset(Player, 171517260) then
					AddAmnt = 2000
				end
				Money.Value = Money.Value + AddAmt
			end
		end
	end)
end)