Why is my script that is located in ServerScriptStorage not giving my character a tool?

When I purchase a developer product in my game it gives me the receipt and everything however it doesn't give me the popcorn/product. What is wrong with my script?

local MarketplaceService = game:GetService("MarketplaceService")
MarketplaceService.ProcessReceipt = function(receiptInfo)
local players = game.Players:GetPlayers()
for i=1,#players do
if players[i].UserId == receiptInfo.PlayerId then
	local RS = game:GetService("ReplicatedStorage")
	local item = RS:WaitForChild("Popcorn")
	local cloned = item:Clone()
	local player = game.Players:GetChildren()
	cloned.Parent = player.Backpack
	cloned.Parent = player.StarterGear
print("cool")
end
end
return Enum.ProductPurchaseDecision.PurchaseGranted	
end