Help with a script that gives points

This coding is in the Developer product script. When I buy the product, I want +100 points (in my game its named Credits) to my credits leaderstats. Though, it will not give me 100 points, and since you cannot purchase something in edit mode, I cant check the output window. So, heres my coding. player = game.Players:GetPlayerFromCharacter() points = player.leaderstats.Credits points.Value = points.Value + 100 --This is the coding I added into the script. This is what I want to happen when I purchase the script. Heres all of the code --setup local variables local MarketplaceService = Game:GetService("MarketplaceService") local ds = game:GetService("DataStoreService"):GetDataStore("PurchaseHistory") local productId = "19323757"

-- define function that will be called when purchase finished MarketplaceService.ProcessReceipt = function(receiptInfo)

-- find the player based on the PlayerId in receiptInfo
for i, player in ipairs(game.Players:GetChildren()) do
	if player.userId == receiptInfo.PlayerId then
		
		-- check which product was purchased
		if receiptInfo.ProductId == productId then
			
			-- handle purchase. In this case we are healing the player.
			player = game.Players:GetPlayerFromCharacter()
			points = player.leaderstats.Credits
	        points.Value = points.Value + 100
			
			-- more feedback for the player.
			game.Workspace.DisplayScreen.SurfaceGui.TextBox.Text = player.Name .. " has purchased a healing potion."
		end
	end
end	

-- record the transaction in a Data Store
local playerProductKey = "player_" .. receiptInfo.PlayerId .. "_purchase_" .. receiptInfo.PurchaseId
ds:IncrementAsync(playerProductKey, 1)	

-- tell ROBLOX that we have successfully handled the transaction
return Enum.ProductPurchaseDecision.PurchaseGranted		

end