how do i make this script work in a server? lololol

it's supposed to fling any parts it touches, It works in studio mode but when i try to publish it to my Place and be flinged By it, but it only makes me trip. Why is that?

s = script.Parent -- it's a part
function woosh(hit) 
    hit.Velocity = ((hit.Position - s.Position).unit + Vector3.new(0,1,0))* 200 + script.Parent.Velocity
    hit.RotVelocity =  hit.RotVelocity + Vector3.new(math.random(-10,10),math.random(-10,10),math.random(-10,10))
    local a = hit.parent:findFirstChild("Humanoid")
        if a then
        a.PlatformStand = true
        wait(5)
        a.PlatformStand = false
    end
end

s.Touched:connect(woosh)

like really