why my crafting dont work??? devking made it and it dont work :/

this is my script in serverscriptservice

local RepSto = game:GetService("ReplicatedStorage")
local CraftTool = RepSto:WaitForChild("CraftTool")
local toolFolder = RepSto:WaitForChild("Toolls")
local craftingData = require(RepSto:WaitForChild("CraftingToolsData"))

CraftTool.OnServerInvoke = function(player, toolName)
	local inventory = player:WaitForChild("Inventory")
	local Stick = inventory:FindFirstChild("Stick")
	local Stone = inventory:FindFirstChild("Stone")
	local IronIngot = inventory:FindFirstChild("IronIngot")
	local crafted = false
	
	for i, v in pairs(craftingData[toolName]) do
		local material = inventory:FindFirstChild(i)
		if material then
			if material.Value >= v then
				material.Value = material.Value - v
				crafted = true
			else
				crafted = false
			end
		end
	end
	if crafted == true then
		local tool = toolFolder:FindFirstChild(toolName):Clone()
		
		if tool then
			tool.Parent = player.Backpack
		end
	end
end

and this is local script in gui

local RepSto = game:GetService("ReplicatedStorage")
local CraftTool = RepSto:WaitForChild("CraftTool")
local craftingframe = script.Parent

craftingframe.StonePickaxe.MouseButton1Click:Connect(function()
	for i, button in pairs(craftingframe:GetChildren()) do
		if button:IsA("TextButton") then
			button.MouseButton1Click:Connect(function()
				CraftTool:InvokeServer(button.Name)
			end)
		end
	end
end)