Why my script is not working?

script.Parent.MouseButton1Click:connect(function()  --- this function is working
    game.Workspace.GameMessage.Text="Carrots are fruits."
    Wait(3)
    game.Workspace.GameMessage.Text=""
end)

wait(11)
function divider()
    local div = game.Workspace.Divider.Door
    local fal = game.Workspace.False.Door

    div.Transparency= 0.75   ----- working
    div.CanColide= true
    wait(1)

    fal.Transparency= 0.5     ---- from here it doesn't work
    fal.CanCollide= false
    wait(5)
    fal.Transparency= 0
    fal.CanCollide= true

    wait(1)
    div.Transparency= 1
    div.CanColide= false
end

divider()