Grip Editor Doesn't Function?

local Plugin = PluginManager():CreatePlugin()
local Toolbar = Plugin:CreateToolbar("Plugins")
local ActivateButton = Toolbar:CreateButton("", "Tool Grip Editor", "wrench_hold.png")
local Mouse = Plugin:GetMouse()

local TRANSPARENCY = 0

local function Create(ty)
    return function(data)
        local obj = Instance.new(ty)
        for k, v in pairs(data) do
            if type(k) == 'number' then
                v.Parent = obj
            else
                obj[k] = v
            end
        end
        return obj
    end
end

local DummyTemplate = Create'Model'{
    Name = "Dummy";
    Create'Part'{
        Anchored = true;
        Transparency = TRANSPARENCY;
        TopSurface = Enum.SurfaceType.Smooth;
        BrickColor = BrickColor.new(1002);
        Size = Vector3.new(2, 1, 1);
        formFactor = Enum.FormFactor.Symmetric;
        CFrame = CFrame.new(0, 4.5, -0.5, -1, 0, 0, 0, 1, 0, 0, 0, -1);
        Name = "Head";
        Locked = true;
        Create'SpecialMesh'{
            Scale = Vector3.new(1.25, 1.25, 1.25);
        };
    };
    Create'Part'{
        Anchored = true;
        Transparency = TRANSPARENCY;
        BrickColor = BrickColor.new(1002);
        Size = Vector3.new(1, 2, 1);
        formFactor = Enum.FormFactor.Symmetric;
        CFrame = CFrame.new(1.5, 3, -0.5, -1, 0, 0, 0, 1, 0, 0, 0, -1);
        Name = "Left Arm";
        Locked = true;
        Create'SpecialMesh'{
            MeshType = Enum.MeshType.FileMesh;
            MeshId = "http://www.roblox.com/asset/?id=27111419";
        };
    };
    Create'Part'{
        Anchored = true;
        Transparency = TRANSPARENCY;
        BrickColor = BrickColor.new(1002);
        Size = Vector3.new(1, 2, 1);
        formFactor = Enum.FormFactor.Symmetric;
        BottomSurface = Enum.SurfaceType.Smooth;
        CFrame = CFrame.new(0.5, 1, -0.5, -1, 0, 0, 0, 1, 0, 0, 0, -1);
        Name = "Left Leg";
        Locked = true;
        Create'SpecialMesh'{
            MeshType = Enum.MeshType.FileMesh;
            MeshId = "http://www.roblox.com/asset/?id=27111857";
        };
    };
    Create'Part'{
        Anchored = true;
        Transparency = TRANSPARENCY;
        BrickColor = BrickColor.new(1002);
        Size = Vector3.new(1, 2, 1);
        formFactor = Enum.FormFactor.Symmetric;
        CFrame = CFrame.new(-1.5, 3.5, 0, -0.99999994, -0, 0, 0, -4.37113883e-008, -1, 0, -1, 4.37113883e-008);
        Name = "Right Arm";
        Locked = true;
        Create'SpecialMesh'{
            MeshType = Enum.MeshType.FileMesh;
            MeshId = "http://www.roblox.com/asset/?id=27111864";
        };
    };
    Create'Part'{
        Anchored = true;
        Transparency = TRANSPARENCY;
        BrickColor = BrickColor.new(1002);
        Size = Vector3.new(1, 2, 1);
        formFactor = Enum.FormFactor.Symmetric;
        BottomSurface = Enum.SurfaceType.Smooth;
        CFrame = CFrame.new(-0.5, 1, -0.5, -1, 0, 0, 0, 1, 0, 0, 0, -1);
        Name = "Right Leg";
        Locked = true;
        Create'SpecialMesh'{
            MeshType = Enum.MeshType.FileMesh;
            MeshId = "http://www.roblox.com/asset/?id=27111882";
        };
    };
    Create'Part'{
        Anchored = true;
        Transparency = TRANSPARENCY;
        BrickColor = BrickColor.new(1002);
        Size = Vector3.new(2, 2, 1);
        formFactor = Enum.FormFactor.Symmetric;
        CFrame = CFrame.new(0, 3, -0.5, -1, 0, -0, -0, 1, -0, -0, 0, -1);
        Name = "Torso";
        Locked = true;
        Create'SpecialMesh'{
            MeshType = Enum.MeshType.FileMesh;
            MeshId = "http://www.roblox.com/asset/?id=27111894";
        };
    };
};

local OverlayTemplate = Create'Part'{
    FormFactor = 'Custom';
    Locked = true;
    Anchored = true;
    Transparency = TRANSPARENCY;
}
local HandlesTemplate = Create'Handles'{
    Color = BrickColor.new("Bright orange");
    Style = 'Resize';
}
local ArcHandlesTemplate = Create'ArcHandles'{
    Color = BrickColor.new("Br. yellowish green");
}

local function CameraLookAt(cf)
    local Camera = Workspace.CurrentCamera
    Camera.Focus = cf
    Camera.CoordinateFrame = CFrame.new(Camera.CoordinateFrame.p,cf.p)
end

local function Snap(number,by)
    if by == 0 then
        return number
    else
        return math.floor(number/by + 0.5)*by
    end
end

local CoreGui = Game:GetService("CoreGui")
local OFFSET = CFrame.new(0, -1, 0, 1, 0, -0, 0, 0, 1, 0, -1, -0)
local currentObjects = {}
local function HandleTool(tool,handle)
    local dummy = DummyTemplate:Clone()
    table.insert(currentObjects,dummy)
    dummy.Archivable = false

    local arm = dummy["Right Arm"]

    dummy.Parent = Workspace
    dummy:MoveTo(handle.Position)

    local dummyHandle = handle:Clone()
    dummyHandle.Archivable = false
    dummyHandle.Locked = true
    dummyHandle.Anchored = true
    dummyHandle.Transparency = TRANSPARENCY
    dummyHandle.CFrame = arm.CFrame * OFFSET * tool.Grip:inverse()
    dummyHandle.Parent = dummy
    local c = handle.Changed:connect(function(p)
        if p == 'Size' then
            local cf = dummyHandle.CFrame
            dummyHandle.Size = handle.Size
            dummyHandle.CFrame = cf
        end
    end)
    table.insert(currentObjects,function()
        c:disconnect()
    end)
    table.insert(currentObjects,dummyHandle)

    local function overlaySize()
        local n = dummyHandle.Size.magnitude/2
        return Vector3.new(n,n,n)
    end

    do
        local overlay = OverlayTemplate:Clone()
    --  overlay.Parent = dummy
        table.insert(currentObjects,overlay)
        dummyHandle.Changed:connect(function(p)
            overlay.CFrame = dummyHandle.CFrame
            overlay.Size = overlaySize()*3
        end)
        overlay.Size = overlaySize()*3
        overlay.CFrame = dummyHandle.CFrame

        local handles = HandlesTemplate:Clone()
        table.insert(currentObjects,handles)
        handles.Archivable = false
        handles.Adornee = overlay
        local origin
        handles.MouseButton1Down:connect(function(face)
        --  origin = dummyHandle.CFrame
            origin = tool.Grip:inverse()
        end)
        handles.MouseDrag:connect(function(face,distance)
            local rdis = distance
            local pos = Vector3.FromNormalId(face)*rdis
        --  dummyHandle.CFrame = origin + pos
            tool.Grip = (origin * CFrame.new(pos)):inverse()
            dummyHandle.CFrame = arm.CFrame * OFFSET * tool.Grip:inverse()
        end)
        handles.Parent = CoreGui
    end
    do
        local overlay = OverlayTemplate:Clone()
    --  overlay.Parent = dummy
        table.insert(currentObjects,overlay)
        dummyHandle.Changed:connect(function(p)
            overlay.CFrame = dummyHandle.CFrame
            overlay.Size = overlaySize()
        end)
        overlay.CFrame = dummyHandle.CFrame
        overlay.Size = overlaySize()

        local arcHandles = ArcHandlesTemplate:Clone()
        table.insert(currentObjects,arcHandles)
        arcHandles.Archivable = false
        arcHandles.Adornee = overlay
        local origin
        arcHandles.MouseButton1Down:connect(function(axis)
        --  origin = dummyHandle.CFrame
            origin = tool.Grip:inverse()
        end)
        arcHandles.MouseDrag:connect(function(axis,angle)
            local rdis = angle
            local snapped = Snap(angle,math.pi/2)
            if math.abs(angle - snapped) < math.pi/64 then
                rdis = snapped
            end
            local a = Vector3.FromAxis(axis)*rdis
            local new = CFrame.Angles(a.x,a.y,a.z)
        --  dummyHandle.CFrame = origin * new
            tool.Grip = (origin * new):inverse()
            dummyHandle.CFrame = arm.CFrame * OFFSET * tool.Grip:inverse()
        end)
        arcHandles.Parent = CoreGui
    end
    CameraLookAt(dummyHandle.CFrame)
end

local function CleanUp()
    for k,object in pairs(currentObjects) do
        if type(object) == 'function' then
            object()
        else
            object:Destroy()
        end
        currentObjects[k] = nil
    end
end

local pluginActive = false
local Selection = Game:GetService("Selection")
local function CheckSelection()
    if pluginActive then
        CleanUp()
        local tool = Selection:Get()[1]
        if tool and tool:IsA"Tool" then
            local handle = tool:FindFirstChild("Handle")
            if handle and handle:IsA"BasePart" then
                HandleTool(tool,handle)
            end
        end
    end
end
Selection.SelectionChanged:connect(CheckSelection)

local function Activate()
    pluginActive = true
    Plugin:Activate(true)
    ActivateButton:SetActive(true)
    CheckSelection()
end

local function Deactivate()
    pluginActive = false
    ActivateButton:SetActive(false)
    CleanUp()
end

ActivateButton.Click:connect(function()
    if pluginActive then
        Deactivate()
    else
        Activate()
    end
end)

Plugin.Deactivation:connect(Deactivate)

I got it from another Site, it's an Old Plugin so I had to Upload it Manually... Nothing pops up, but there should be a Meshed Person, and the Tool in his Hands so I could Rotate and Move them and stuff, but nothing shos up :/

Edit: Click Here.