Why is the LookVector only works in Studio, but not In Game?

I've been fixing this script for many times, and still don't work in game. What Should I do with this? There are no errors in the output though. :/

script.Parent.Touched:Connect(function(hit)
	if hit.Parent:FindFirstChild('Humanoid') then
		if not toggle then
			toggle = true
			local pad = script.Parent
			pad.BrickColor = BrickColor.new('Lime green')
			local thrust = Instance.new('BodyThrust')
			thrust.Force = Vector3.new(0,-2250,0)
			thrust.Parent = hit.Parent:FindFirstChild('HumanoidRootPart')

			hit.Parent:FindFirstChild('HumanoidRootPart').Velocity = 	script.Parent.CFrame.LookVector * config:FindFirstChild('BoostForce').Value

			wait(.5)
			pad.BrickColor = BrickColor.new('Fossil')
			pad.Material = ('Metal')
			toggle = false
		end
	end
end)