I need help fixing a climbing tool, can you help me?

I made dis legit climbing tool that you have to put in the starter GUI [its a model]. But for some reason it works but it breaks apart in a way. Heres the link down below if you can fix the script can you pm me

http://www.roblox.com/Climbing-Tool-item?id=381384770

If you can help me can you take the model fix it in Studio, then send me the script or model please. Thank you

The script vvv

Player.CharacterAdded:wait() Char = Player.Character Left, Right = Char:WaitForChild("Left Arm"), Char:WaitForChild("Right Arm")

--Put in starter GUI

--Controlls: Q And E

Distance = 20 --How far they can reach

Can = true

Mouse = Player:GetMouse()

Mouse.KeyDown:connect(function(Key) if string.lower(Key) == "q" then local Q = Left:FindFirstChild("Q") if Q then Q:remove() end local Pos = Mouse.Hit.p if (Pos - Left.Position).magnitude < Distance then if Can then Can = false local Body = Instance.new("BodyPosition", Left) Body.Name = "Q" Body.maxForce = Vector3.new(20000, 20000, 20000) Body.position = Pos local Part = Instance.new("Part", Char) Part.Transparency = 1 Part.FormFactor = "Custom" Part.Size = Vector3.new(1, 1, 1) local Box = Instance.new("SelectionBox", Part) Box.Adornee = Part Part.CFrame = CFrame.new(Pos) Part.Name = "Q" wait(0.25) Can = true end end end if string.lower(Key) == "e" then local Pos = Mouse.Hit.p local E = Right:FindFirstChild("E") if E then E:remove() end if (Mouse.Hit.p - Right.Position).magnitude < Distance then if Can then Can = false local Body = Instance.new("BodyPosition", Right) Body.Name = "E" Body.maxForce = Vector3.new(20000, 20000, 20000) Body.position = Pos local Part = Instance.new("Part", Char) Part.Transparency = 1 Part.FormFactor = "Custom" Part.Size = Vector3.new(1, 1, 1) local Box = Instance.new("SelectionBox", Part) Box.Adornee = Part Part.CFrame = CFrame.new(Pos) Part.Name = "E" wait(0.25) Can = true end end end end)

Mouse.KeyUp:connect(function(Key) if string.lower(Key) == "q" then local Q = Left:FindFirstChild("Q") local Q2 = Char:FindFirstChild("Q") if Q then Q:remove() end if Q2 then Q2:remove() end end if string.lower(Key) == "e" then local E = Right:FindFirstChild("E") local E2 = Char:FindFirstChild("E") if E then E:remove() end if E2 then E2:remove() end end end)