Script only working in studio and not ingame, How do I fix this? It's a launchpad also.

function onTouched(part)
    if part.Parent ~= nil then
        local h = part.Parent:findFirstChild("Humanoid")
            if h~=nil then

h.Parent.Torso.Velocity=Vector3.new(0,500,800)
wait(0.5)

            end         
    end
end

script.Parent.Touched:connect(onTouched)

This script is like a launch pad that launches the player, but it is only working in studio and not ingame FE is off