Issue Implementing Tuneable's Placement Script?

Hello, recently I ran into a small problem when I tried to add Tunicus's placement script into my personal place. Loading up the game, the output returns ...PlayerGui.PlacementGui.PlacementScipt:45: attempt to index local 'signal' (a nil value), which I presume is an issue with the way that the "signal" variable is being created or interacted with.

Here is the copy of the localScript, which handles the client-sided placement of objects:

--Backbone of script made by Tuneable Studios/Tunicus
local placementHandler = require(script:WaitForChild("PlacementModule"))
local localPlayer = game.Players.LocalPlayer
local baseplate = game.Workspace.PlayerPlates:WaitForChild(localPlayer.Name)
local itemHold = game.Workspace.ItemHolder
local items = game:GetService("ReplicatedStorage").Items

local plane = placementHandler.new(baseplate, itemHold, 1)
local currentItem
local signal

local function cancelPlacement()
	if (currentItem) then
		plane:disable()
		
		if(fakeModel.Parent) then
			fakeModel:Destroy()
		end
		
		fakeModel = nil
		signal = nil
		currentItem = nil	
	end
end


local function beginPlacement(itemName)
  cancelPlacement()

  fakeModel = items[itemName]:clone()
  currentItem = itemName
	
  for _, object in pairs(fakeModel:GetChildren()) do
			if(object:IsA("BasePart")) then
			object.CanCollide = false
		end
	end
		
  fakeModel.Parent = workspace
  
  plane:enable(fakeModel)
	
  local signal = plane:enable(fakeModel)

  signal:connect(function(location,_)
	game:GetService("ReplicatedStorage").ClientSidedPlacement:FireServer(currentItem, location[1])
	
	cancelPlacement()
	end)	
end

wait(3)

beginPlacement("Model")

And here is a copy of Tuneable's placement script: *Due to the 10k character limit, I will link the script instead. It can be found at https://www.roblox.com/library/1122124371/Placement-Handler-V2

My guess is that there is an issue when setting local "signal" to plane:enable(fakeModel) as it appears to have changed in the newer version of the ModuleScript. How can I remedy this? Thanks in advance.