Why will this teleport script not work?

I created a tardis that is suppose to teleport to 2 different times of a place. My script however keeps looping itself for like 5 times and then it resets to the default values.

local button = workspace.place
local teleport = workspace.TP.Head
local back = workspace.back.Head
function onClick()
    teleport.Enabled.Value = '1'
end
button.ClickDetector.MouseClick:connect(onClick)

function onTouch(part)
    wait(1) 
    teleport.Enabled.Value = '0'
    wait(20)
    back.Enabled.Value = '1'
    wait(1)
    back.Enabled.Value = '0'

end
teleport.Touched:connect(onTouch)

The teleport script is below which I did not make. though If you have any simplifications for it that would be nice.

--Made By Adrian928
------------------------------------
modelname="tele2" 
------------------------------------
--          ^ Name that.

function onTouched(part)
    if part.Parent ~= nil then
    local h = part.Parent:findFirstChild("Humanoid")
        if h~=nil then
            local teleportfrom=script.Parent.Enabled.Value
            if teleportfrom~=0 then
                if h==humanoid then
                return
                end
                local teleportto=script.Parent.Parent:findFirstChild(modelname)
                if teleportto~=nil then
                    local torso = h.Parent.Torso
                    local location = {teleportto.Position}
                    local i = 1

                    local x = location[i].x
                    local y = location[i].y
                    local z = location[i].z

                    x = x + math.random(-1, 1)
                    z = z + math.random(-1, 1)
                    y = y + math.random(2, 3)

                    local cf = torso.CFrame
                    local lx = 0
                    local ly = y
                    local lz = 0

                    script.Parent.Enabled.Value=0
                    teleportto.Enabled.Value=0
                    torso.CFrame = CFrame.new(Vector3.new(x,y,z), Vector3.new(lx,ly,lz))
                    wait(1)
                    script.Parent.Enabled.Value=1
                    teleportto.Enabled.Value=1
                else
                    print("Could not find teleporter!")
                end
            end
        end
    end
end

script.Parent.Touched:connect(onTouched)

My script outputs show 0 errors and I cannot figure out what the issue is with this.