Why doesn't my camera shake? Works on Solo!

It works fine in Solo mode but when I try and play it normaly it will not work? Any help? My script is a normal script. Thanks! :) Credit will be given at my game :)

function shake()
	local camera = game.Workspace.CurrentCamera
	for i = 1,10 do	
		wait()
		camera.CoordinateFrame = camera.CoordinateFrame * CFrame.new(0,2,0)
		wait()
		camera.CoordinateFrame = camera.CoordinateFrame * CFrame.new(0,-2,0)
	end 
end 

while true do 
	wait(0.01)
	shake()
end