attempt to index nil with 'Damage'?

Hello, I made a script and it does not work. Gives an error message Players.OsipStar4ik.Backpack.StartPickaxe.ToolScript1:24: attempt to index nil with 'Damage' I don't know how to fix it. I hope you help! Thanks

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local collect = game:GetService("CollectionService")
local Players = game:GetService("Players")

local tool = script.Parent
local Remotes = ReplicatedStorage:FindFirstChild("Remotes")

local player = Players.LocalPlayer
local character = player.Character
local humanoid = character:FindFirstChild("Humanoid")
local PickaxeSwingAnim = Instance.new("Animation")
PickaxeSwingAnim.AnimationId = "rbxassetid://11458130668"
local animationTrack1 = humanoid:LoadAnimation(PickaxeSwingAnim)

local ToolConfig = require(ReplicatedStorage:FindFirstChild("Config"):FindFirstChild("ToolConfig"))
local OreConfig = require(ReplicatedStorage:FindFirstChild("Config"):FindFirstChild("OreConfig"))


local inventory = player:FindFirstChild("inventory")
local pickaxeName2 = tool.Name
print("Found", player.Name, "Pickaxe Equipped Name!")
local pickaxe = player.Character:FindFirstChild(pickaxeName2)
print (pickaxeName2)
local pickaxeDmg = ToolConfig.pickaxeName2.Damage
local Ore = player.leaderstats.Ore

tool.Activated:Connect(function(player: Player)
    if tool.Enabled == true then
        print ("1")
        for tool, toolTable in pairs(ToolConfig) do
            print("2")
            if tool == pickaxeName2 then
                print("3")
                local Lezvie = script.Parent.Handle.Lezvie
                Remotes.ToolActivated:FireServer()
                animationTrack1:Play()
                tool.Enabled = false
                humanoid.WalkSpeed = 0
                wait(0.75)
                tool.Enabled = true
                humanoid.WalkSpeed = 16
                Lezvie.Touched:Connect(function(hit)
                    print("4")
                    if collect:HasTag(hit, "RockHitbox") then
                        print("5")
                        Remotes.OreDamaged:FireServer()

                    end
                end)        
            end
        end
    end
end)