Why is this dev product script not prompting purchase? [ANSWERED]

Hi guys! This local script is in a surfacegui on a part that is in the Workspace. Any ideas why this is not prompting purchase? :) Thanks! jj

local buyButton = script.Parent
local productId = 25210034
local mps = game:GetService("MarketplaceService")

function getPlayerById(id)
for i,v in pairs(game.Players:GetPlayers()) do
if v.userId == id then
return v
end
end
end

buyButton.MouseButton1Click:connect(function()
mps:PromptProductPurchase(game.Players.LocalPlayer, productId)
end)

mps.ProcessReceipt = function(info)
local plr = getPlayerById(info.PlayerId)
if plr and plr:FindFirstChild("leaderstats") and plr.leaderstats:FindFirstChild("Coins") then
plr.leaderstats.Coins.Value = plr.leaderstats.Coins.Value + 10000
end
end