How do I get my animation code to play instead of not working?

For some odd reason the code that I use to play animations for my Player isn't working. Here is the script

local Player = game.Players.LocalPlayer
local Mouse = Player:GetMouse()

Mouse.KeyDown:connect(function(key)
    key = key:lower()
    if key == "g" then
        local anim = Player.Character.Humanoid:LoadAnimation(script.Animation)
    game:GetService("Chat"):Chat(Player.Character.Head, "BLESSED HAMMER!", "Blue")
        local x = game.ReplicatedFirst.Hammer.Handle:Clone()
        x.Parent = game.Workspace
        x.Name = "NotIceHammer"     
        x.Anchored = false
        x.CanCollide = true x.CFrame=Player.Character.Head.CFrame*CFrame.new(0,6.5,4)*CFrame.Angles(0,math.pi/2,2*math.pi/9)
        local pe = Instance.new("ParticleEmitter", x) --Make the Hammer look Blessful-ly
        pe.Size = NumberSequence.new(0,2.62)
        pe.Texture = "rbxassetid://1205087993"
        pe.EmissionDirection = Enum.NormalId.Back
        pe.SpreadAngle = Vector2.new(0,360)
        pe.Lifetime = NumberRange.new(2.5)
        pe.Rate = 100
        pe.LightEmission = 0.1
        pe.Lifetime = NumberRange.new(.5)
        pe.Speed = NumberRange.new(.2)
        pe.Transparency = NumberSequence.new(.7)
        local bv = Instance.new("BodyVelocity", x) --To Counteract the gravity pulling the hammer down
        bv.MaxForce = Vector3.new(math.huge,math.huge,math.huge)
        bv.Velocity = Player.Character.Head.CFrame.upVector*0
        local bv = Instance.new("BodyVelocity", x)
        bv.MaxForce = Vector3.new(math.huge,math.huge,math.huge)
        bv.Velocity = Player.Character.Head.CFrame.upVector*0
        --Might Take Below Out--
        while true do --Rotates it on its Z-Axis--
            x.CFrame = x.CFrame * CFrame.fromEulerAnglesXYZ(0,0,0)
            wait(0.01)
        end
        --Might Take Above Out--
        anim:Play()

        --Make The Hammer Follow the Humanoid's Arms--

    end
end)

The Animation Code used in this script is what I use for other scripts like this and they work just fine. I also have tried changing the Animation Priority to "Movement" and that didn't help either.