My Tool works in Studio mode, but not in Online mode. Is there something wrong with my Script?

As the title said, I need help to configure these scripts to work "online"... I have tryied many things, but nothing worked, that is why I'm here. Please, give me a hand :D

The following scripts are a LOCK TOOL that verifies if the selected part have a IntValue of 1, then change it to locked or unlocked. Its working on Studio with no error reports on output. It just wont work at online... :(

*Representation in StarterPack

         -LockTool --> (HopperBin)
                -LockScript -->(Script)
                -LocalScript -->(LocalScript)

%%%%%%% LocalScript (LOCAL SCRIPT) %%%%%%%%%%

wait(0.1)

active = false

selectionBox = Instance.new("SelectionBox")
selectionBox.Color = BrickColor.Red()
selectionBox.Visible = true

selectionLasso = Instance.new("SelectionPartLasso")
selectionLasso.Color = BrickColor.Black()
selectionLasso.Humanoid = game.Players.LocalPlayer.Character.Humanoid

gui = Instance.new("ScreenGui")
text = Instance.new("TextLabel")
text.Parent = gui
text.Text = "No brick selected"
text.BackgroundColor3 = Color3.new(1/256*17, 1/256*17, 1/256*17)
text.BorderColor3 = Color3.new(1/256*17, 1/256*17, 1/256*17)
text.TextColor3 = Color3.new(1, 1, 1)
text.Position = UDim2.new(0, 0, 1, -20)
text.Size = UDim2.new(0, 100, 0, 20)
text.BackgroundTransparency = 0.25

function onMouseButton1Down(target)
    if target ~= nil then   
        if target:FindFirstChild("Value") ~= nil then       
            if target.Locked == true then
                target.Locked = true
                target.Velocity = Vector3.new(0, 0, 0)
                target.RotVelocity = Vector3.new(0, 0, 0)
                selectionBox.Color = BrickColor.Green()
                text.Text = "Brick is Locked"
            else
                target.Locked = false
                target.Velocity = Vector3.new(0, 0, 0)
                target.RotVelocity = Vector3.new(0, 0, 0)
                selectionBox.Color = BrickColor.Red()
                text.Text = "Brick isn't Locked"
            end
        end
    end
end

function onMouseMoved(target)
    if target ~= nil then
        if target:FindFirstChild("Value") ~= nil then           
            if target.Locked == false then
                selectionBox.Adornee = target           
                selectionBox.Color = BrickColor.Red()
                selectionLasso.Part = target            
                target.Locked = false
                target.Velocity = Vector3.new(0, 0, 0)
                target.RotVelocity = Vector3.new(0, 0, 0)
                selectionBox.Color = BrickColor.Red()
                text.Text = "Brick isn't Locked"
            else
                selectionBox.Adornee = target           
                selectionBox.Color = BrickColor.Green()
                selectionLasso.Part = target            
                target.Locked = true
                target.Velocity = Vector3.new(0, 0, 0)
                target.RotVelocity = Vector3.new(0, 0, 0)
                selectionBox.Color = BrickColor.Green()
                text.Text = "Brick is Locked"
            end
        else
            selectionBox.Adornee = nil
            selectionLasso.Part = nil           
            text.Text = "Brick is Protected"
        end     
    else
        selectionBox.Adornee = nil
        selectionLasso.Part = nil           
        text.Text = "Brick is Protected"
    end
end

function onSelected(mouse)
    if active == false then
        active = true
        gui.Parent = game.Players.LocalPlayer.PlayerGui
        selectionBox.Parent = game.Players.LocalPlayer.PlayerGui
        selectionLasso.Parent = game.Players.LocalPlayer.PlayerGui
        mouse.Move:connect(function() onMouseMoved(mouse.Target) end)
        mouse.Button1Down:connect(function() onMouseButton1Down(mouse.Target) end)
    end
end

function onDeselected()
    if active == true then
        active = false
        gui.Parent = nil
        selectionBox.Parent = nil
        selectionLasso.Parent = nil
    end
end

script.Parent.Selected:connect(onSelected)
script.Parent.Deselected:connect(onDeselected)

%%%%%%%%% LockScript (SCRIPT) %%%%%%%%%%%%

bin = script.Parent

function thread(func)
    coroutine.resume(coroutine.create(func))
end

function makeMessage(text, time)
    print("msg")
    thread(function()
        local ply = bin.Parent.Parent
        if ply then
            local m = Instance.new("Message")
            m.Name = "LockToolMessage"
            m.Text = text
            m.Parent = ply
            wait(time)
            m.Parent = nil
        end
    end)
end

function onButton1Down(mouse)
    target = mouse.Target
    if target:FindFirstChild("Value") == 0 then
        makeMessage("Protected Part", 3)
    else 
        if target:FindFirstChild("Value") ~= nil then   
            if target.Locked then
                target.Locked = false
                makeMessage("Unlocked \"" .. target.Name .. "\"",3)
            else
                target.Locked = true
                makeMessage("Locked \"" .. target.Name .. "\"",3)
            end
        end
    end
end

function onSelected(mouse)
    mouse.Icon = "rbxasset://textures\\GunCursor.png"
    mouse.Button1Down:connect(function() onButton1Down(mouse) end)
end

bin.Selected:connect(onSelected)