When I buy the first item, it doesn't change lds.PPK.Value. Any ideas why?

local MarketplaceService = Game:GetService("MarketplaceService")
local ds = game:GetService("DataStoreService"):GetDataStore("PurchaseHistory")

MarketplaceService.ProcessReceipt = function(receiptInfo)
	local playerProductKey = "player_" .. receiptInfo.PlayerId .. "_product_" .. receiptInfo.ProductId
	local numberBought = ds:IncrementAsync(playerProductKey, 1)
	for i,v in pairs (game.Players:GetChildren()) do
		if v.userId == receiptInfo.PlayerId then
			if receiptInfo.ProductId == 20415462 then
				lds = v:FindFirstChild("Backpack")
				lds.PPK.Value = 50
				print(lds.PPK.Value)
				wait(10)
				lds.PPK.Value = 10
			elseif receiptInfo.ProductId == 20415479 then
				lds = v:FindFirstChild("Backpack")
				lds.PPK.Value = 125
				wait(10)
				aaaa = v:FindFirstChild('PlayerGui')
				lds.PPK.Value = 10
				aaaa.PowerUp:Destroy()
			elseif receiptInfo.ProductId == 20415500 then
				lds = v:FindFirstChild("Backpack")
				lds.PPK.Value = 500
				wait(15)
				aaaa = v:FindFirstChild('PlayerGui')
				lds.PPK.Value = 10
				aaaa.PowerUp:Destroy()
			elseif receiptInfo.ProductId == 20415510 then
				lds = v:FindFirstChild("Backpack")
				lds.PPK.Value = 2500
				wait(20)
				aaaa = v:FindFirstChild('PlayerGui')
				lds.PPK.Value = 10
				aaaa.PowerUp:Destroy()
			elseif receiptInfo.ProductId == 20120910 then
				lds = v:FindFirstChild("Backpack")
				game.ServerStorage.GreenSword:Clone().Parent = lds
			elseif receiptInfo.ProductId == 20121095 then
				lds = v:FindFirstChild("Backpack")
				game.ServerStorage.DCB:Clone().Parent = lds
			end
		end
	end
	return Enum.ProductPurchaseDecision.PurchaseGranted	
end
Anonymous