Why isn't the animation playing when the player touches the part with that tool?

Why isn't the animation playing when the player touches the part with that tool? Rest of the script is working fine until I added the animation in. What am i doing wrong?

local Boards = workspace.Keycard
local anim = Instance.new("Animation")
anim.AnimationId = "http://www.roblox.com/asset/?id=04817034121"


script.Parent.Touched:connect(function(p)
if p.Parent.Name == "Card" then
local humanoid = p.Parent:FindFirstChild("Humanoid")
if not humanoid then return end
local playAnim = humanoid:LoadAnimation(anim)
playAnim:Play()
script.Parent.Transparency = 1
script.Parent.CanCollide = false
script.Parent.CFrame = CFrame.new(-182.762, -79.48, 273.027)
humanoid.WalkSpeed = 0
wait(2.50)