on command walk thru players for admin what does it miss?

hello so i made a walkthruplayers script but what does it miss before i can put into something like hd admin also the script is made for r6 characters

"'game:GetService("RunService").Stepped:connect(function() for _, player in pairs(game.Players:GetPlayers()) do if player ~= game.Players.LocalPlayer then local character = player.Character if character then local head = character:FindFirstChild("Head") local torso = character:FindFirstChild("Torso") if head then head.CanCollide = false end if torso then torso.CanCollide = false end end end end end)''