error message says a part isnt a part of the tool when its clearly is what is going on?

so basically whenever I run the code I get the error message of BLADEPART1 is not a valid member of Tool "Players.MrAspuru.Backpack.Anakin's Lightsaber"

I don't understand this as it is clearly a part of the tool I don't know how to add images to this but BLADEPART1 is in the tool here is the script which is showing the error message the error message says it's from line 116

attacksequencenumber = 0
local enabled = true
sound1 = game.Workspace.Sound11
sound2 = game.Workspace.Sound21
sound3 = game.Workspace.Sound31
sound4 = game.Workspace.Sound41
sound5 = game.Workspace.Sound51
tool = script.Parent
damagecooldown = false
local ReplicatedStorage = game:GetService("ReplicatedStorage")

local remoteEvent = ReplicatedStorage:WaitForChild("Damage")


local playerer = script.Parent.Parent

on = true

function damage(obj)
    local plr = obj.Parent:FindFirstChild("Humanoid")
    if plr then
        if script.Parent.BladeOn.Value == 1 then
            if enabled == false then
                if on == true then
                    on = false
                    remoteEvent:FireServer("Attack")
                    wait(0.6)
                    on = true

                end
            end
        end
    end
end

tool.Equipped:Connect(function()
    equipped = true
end)

tool.Unequipped:Connect(function()
    equipped = false
end)


script.Parent.Equipped:Connect(function(Mouse)
    Mouse.Button1Down:Connect(function()

        animation = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation)
        animation2 = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation2)
        animation3 = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation3)
        animation4 = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation4)
        animation5 = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation5)


        if enabled == true then
            if script.Parent.BladeOn.Value == 1 then
                if attacksequencenumber == 0 then
                    animation:Play()
                    sound1:Play()
                end
                if attacksequencenumber == 1 then
                    animation2:Play()
                    sound2:Play()
                end
                if attacksequencenumber == 2 then
                    animation3:Play()
                    sound3:Play()
                end 
                if attacksequencenumber == 3 then
                    animation4:Play()
                    sound4:Play()
                end 
                if attacksequencenumber == 4 then
                    animation5:Play()
                    sound5:Play()
                end 

                enabled = false
                attacksequencenumber = attacksequencenumber + 1
                if attacksequencenumber == 5 then
                    attacksequencenumber = 0
                end

                wait(0.8)
                enabled = true
            end
        end
    end)
end)

script.Parent.Unequipped:Connect(function()
    animation = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation)
    animation2 = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation2)
    animation3 = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation3)
    animation4 = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation4)
    animation5 = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation5)


        animation:Stop() 


        animation2:Stop()


        animation3:Stop()


        animation4:Stop()


        animation5:Stop()

end)


local part = script.Parent.BLADEPART1
local player = game.Players.LocalPlayer

local clashsound = game.Workspace.Clash


local function onPartTouched(otherPart)
    print(part.Name .. " has touched " .. otherPart.Name)
    if otherPart.Name == "BLADEPART1" and otherPart.ClassName == "Part" then
        print("clash")
        animation:Stop()
        animation2:Stop()
        animation3:Stop()
        animation4:Stop()
        animation5:Stop()
        if script.Parent.BladeOn.Value == 1 then
            clashsound:Play()
        end
    end
end

part.Touched:Connect(onPartTouched)






local player = game.Players.LocalPlayer
local mouse = player:GetMouse()




local held = false
mouse.Button2Down:connect(function()
    if equipped == true then
        animation = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation)
        animation2 = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation2)
        animation3 = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation3)
        animation4 = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation4)
        animation5 = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Animation5)
        Block = game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Block)
        animation:Stop()
        animation2:Stop()
        animation3:Stop()
        animation4:Stop()
        animation5:Stop()
        held = true
        Block:Play()
        player.Character.Humanoid.WalkSpeed = 8
        script.Parent.IsBlocking.Value = 1
        if script.Parent.BladeOn.Value == 1 then
            sound2:Play()
        end
    end
end)

mouse.Button2Up:connect(function()

    held = false
    Block:Stop()
    player.Character.Humanoid.WalkSpeed = 16
    script.Parent.IsBlocking.Value = 0
    if equipped == true then
        if script.Parent.BladeOn.Value == 1 then
            sound2:Play()
        end
    end
end)

script.Parent.BLADEPART1.Touched:Connect(damage)