How to check a value in the player?

I'm making a thing where i t makes a folder called Inventory inside the player and a intValue called Log and when they click this button it checks if they have 5 or more logs it prints the player name has 5 or more logs but it didnt work Instead i got a error: Players.googlpeopel15.PlayerGui.InvGUI.Frame.LogWall.PurchaseHandler:3: attempt to index nil with 'Inventory' - Client - PurchaseHandler:3 12:15:33.742

Here is Inventory adding code. (Server script in ServerScriptService)

game.Players.PlayerAdded:Connect(function(player)
	local Inventory = Instance.new("Folder")
	Inventory.Parent = player
	Inventory.Name = "Inventory"
	
	local Log = Instance.new("IntValue")
	Log.Parent = Inventory
	Log.Value = 0
	Log.Name = "Log"
end)

The Code that is causing errors (LocalScript in InvGUI which is in StarterGUI)

script.Parent.MouseButton1Click:Connect(function(player)
	local logamount = player.Inventory.Log
	if logamount.Value >= 5 then
		print(player.Name "Has 5 or more then 5 logs")
	else
		print(player.Name "Has less than 5 logs")
	end
end)

Instead of:

script.Parent.MouseButton1Click:Connect(function(player)
    local logamount = player.Inventory.Log
    if logamount.Value >= 5 then
        print(player.Name "Has 5 or more then 5 logs")
    else
        print(player.Name "Has less than 5 logs")
    end
end)

Try:

local player = game.Players.LocalPlayer

script.Parent.MouseButton1Click:Connect(function()
    local logamount = player.Inventory.Log
    if logamount.Value >= 5 then
        print(player.Name "Has 5 or more then 5 logs")
    else
        print(player.Name "Has less than 5 logs")
    end
end)