I keep getting the output '11:37:53.720 - Workspace.Model.Button.Main:25: bad argument #2 to '?' (string expected, got Object) 11:37:53.723 - Script 'Workspace.Model.Button.Main', Line 25 11:37:53.724 - Stack End 11:40:06.226 - Auto-Saving...'.

How can I fix this issue?

local config = script.Parent.Parent.Config
local price = config:WaitForChild("Price")
local itemName = config:WaitForChild("ItemName")																				--[[
-Variables-
	
-Main Code-																														--]]
script.Parent.Touched:connect(function(hit)
	if hit.Parent:FindFirstChild("Humanoid") then
		local plr = game.Players:FindFirstChild(hit.Parent.Name)
		if plr:FindFirstChild("active").Value == false then
			plr:FindFirstChild("active").Value = true
			local plrGui = plr:WaitForChild("PlayerGui")
			local popUp = plrGui:FindFirstChild("PurchasePopup")
		
			popUp.Frame.P1.Text = "Are you sure you want to buy "..itemName.Value.." for "..price.Value.."pts?"
			popUp.Frame.Visible = true
			
			local function buy()
				local points = plr:WaitForChild("leaderstats").Points
				local active = plr:WaitForChild("active")
				if points.Value >= price.Value then
					points.Value = points.Value - price.Value
					active.Value = false
					popUp.Frame.Visible = false
					local tool = game.Lighting[itemName]
					tool:Clone().Parent = game.Workspace
				end
			end

			local function cancel()
				local active = plr:WaitForChild("active")
				active.Value = false
				popUp.Frame.Visible = false	
			end
						
			popUp.Frame.Accept.MouseButton1Down:connect(buy)			
			popUp.Frame.Ignore.MouseButton1Down:connect(cancel)			
		end
	end
end)
Anonymous