Updating a save when a item is removed? [DESPERATE FOR HELP]

Thing is that my script saves the items in the inventory, but if the item is removed from the inventory it still loads it back (I kind of want consumable items)

-- Load script

game:GetService("Players").PlayerAdded:connect(function(Plr)
	Plr.CharacterAdded:connect(function(Char)
		Plr:WaitForDataReady()
		
		local last = {}
		local lastposition = UDim2.new(0, 0, 0, 0)
		for _, v in pairs(game:GetService("ReplicatedStorage").Buttons:GetChildren()) do
			if Plr:LoadString(v.Name) == v.Name then
				if (last) then
				print(Plr:LoadString(v.Name))
				cl = v:Clone()
				cl.Parent = Plr.PlayerGui.Inventory.Frame.Items
				cl.Position = UDim2.new(0, 14, 0, 0) + lastposition
				Plr.PlayerGui.Inventory.NumberOfItems.Value = Plr.PlayerGui.Inventory.NumberOfItems.Value +1
				end
			last = cl
			lastposition = last.Position + UDim2.new(0, -14, 0, 50)
			end
		end
	end)
end)

-- Save script

local Players = game:GetService("Players")	

Players.PlayerAdded:connect(function(Plr)
	Plr.Backpack.ChildAdded:connect(function(Item)
		if Plr.DataReady then
			for _, v in pairs(Plr.PlayerGui.Inventory.Frame.Items:GetChildren()) do
				if v ~= nil then
					Plr:SaveString(v.Name,v.Name)
				end
			end
		end
	end)
end)

Players.PlayerRemoving:connect(function(Plr)
	if Plr.DataReady then
		for _, v in pairs(Plr.PlayerGui.Inventory.Frame.Items:GetChildren()) do
			if v ~= nil then
				Plr:SaveString(v.Name,v.Name)
			end
		end
	end
end)

-- These scripts are not finished yet btw, and thanks for any help :P

Try to make it so there is a boolvalue inside the item. When the script finds it, if the boolvalue is true/false then it removes it. (The item's boolvalue turns true/false after used)