How do I fix this code for developer product purchase?

I have tried making a Donation dev product. This is the code that I want to run when at least one of the products have been bought. Any solution? Thanks.

local MarketplaceService = game:GetService("MarketplaceService")
local DataStoreService = game:GetService("DataStoreService")
local Players = game:GetService("Players")
 
local purchaseHistoryStore = DataStoreService:GetDataStore("PurchaseHistory")

local productFunctions = {}
productFunctions[1082181820] = function(receipt, player)
	game.ReplicatedStorage.Rem_Events.DonationReceived:FireAllClients(player, "10")
		return true
	end
productFunctions[1082181849] = function(receipt, player)
		game.ReplicatedStorage.Rem_Events.DonationReceived:FireAllClients(player, "50")
		return true
end
productFunctions[1082181878] = function(receipt, player)
		game.ReplicatedStorage.Rem_Events.DonationReceived:FireAllClients(player, "100")
		return true
	end
 productFunctions[1082181916] = function(receipt, player)
		game.ReplicatedStorage.Rem_Events.DonationReceived:FireAllClients(player, "150")
		return true
end
 productFunctions[1082181958] = function(receipt, player)
		game.ReplicatedStorage.Rem_Events.DonationReceived:FireAllClients(player, "200")
		return true
end
 productFunctions[1082181998] = function(receipt, player)
		game.ReplicatedStorage.Rem_Events.DonationReceived:FireAllClients(player, "500")
		return true
end
productFunctions[1082182029] = function(receipt, player)
		game.ReplicatedStorage.Rem_Events.DonationReceived:FireAllClients(player, "1000")
		return true
end
local function processReceipt(receiptInfo)
 
	local playerProductKey = receiptInfo.PlayerId .. "_" .. receiptInfo.PurchaseId
	local purchased = false
	local success, errorMessage = pcall(function()
		purchased = purchaseHistoryStore:GetAsync(playerProductKey)
	end)
	if success and purchased then
		return Enum.ProductPurchaseDecision.PurchaseGranted
	elseif not success then
		error("Data store error:" .. errorMessage)
	end
	local player = Players:GetPlayerByUserId(receiptInfo.PlayerId)
	if not player then
		return Enum.ProductPurchaseDecision.NotProcessedYet
	end
	
	local handler = productFunctions[receiptInfo.ProductId]
 
	local success, result = pcall(handler, receiptInfo, player)
	if not success or not result then
		warn("Error occurred while processing a product purchase")
		return Enum.ProductPurchaseDecision.NotProcessedYet
	end
 
	local success, errorMessage = pcall(function()
		purchaseHistoryStore:SetAsync(playerProductKey, true)
	end)
	if not success then
		error("Cannot save purchase data: " .. errorMessage)
	end
 
	return Enum.ProductPurchaseDecision.PurchaseGranted
end
 
MarketplaceService.ProcessReceipt = processReceipt