Giver Script doesn't work?

I can't figure out why this script isn't giving the gear BoardingPass to Players. Yes, I did put BoardingPass into ServerStorage.

local ID = 153919241

local Click = Instance.new("ClickDetector",script.Parent)

Click.MouseClick:connect(function(plr)
if game:GetService("MarketplaceService"):PlayerOwnsAsset(plr, ID) then
game.ServerStorage["BoardingPass"]:clone().Parent = plr.Backpack
print("Player owns asset")
else
game:GetService("MarketplaceService"):PromptPurchase(plr,ID)
print("Player does not own asset")
end
end)