Crafting script doesn't work? Me and my friend tried fixing it, but we can't find out what's wrong.

So, me and my friend were trying to make a crafting script using "Number Values." We looked at the code, but it showed no errors. We can't figure out what's wrong, please help!

local stat1 = "Wood"
local stat1value = 1 
local stat2 = "Vines" 
local stat2value = 1
local final = game.ServerStorage:WaitForChild("Wood Sword")

game.Players.PlayerAdded:Connect(function(plr)
    local statfolder = plr:WaitForChild("stats")
    script.Parent.MouseButton1Down:Connect(function()
        if statfolder:FindFirstChild(stat1).Value >= stat1value and statfolder:FindFirstChild(stat2).Value >= stat2value then
            statfolder:FindFirstChild(stat1).Value = statfolder:FindFirstChild(stat1).Value - stat1value
            statfolder:FindFirstChild(stat2).Value = statfolder:FindFirstChild(stat2).Value - stat2value
            local tool = final:Clone()
            tool.Parent = plr.StarterGear
        end
    end)    
end)

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