Why does an animation work for others but not for me?

So I've been trying to script a simple punch animation that plays when you left click.

I'm using a local script, a server script and a remote event to run it.

Here's the Server Script:

game.ReplicatedStorage.RemoteEvent.OnServerEvent:Connect(function(player,animationID)
    local animation = Instance.new("Animation")
    animation.AnimationId = "http://www.roblox.come/Asset?ID="..animationID

    local loadedAnimation = game.Workspace[player.Name].Humanoid:LoadAnimation(animation)
    loadedAnimation:Play()
    print("Punched")
end)

And here's the Local Script:

game:GetService("UserInputService").InputBegan:Connect(function(input, engine_processed)
    if engine_processed then
        return
    end

    if input.UserInputType == Enum.UserInputType.MouseButton1 then
        game.ReplicatedStorage.RemoteEvent:FireServer(7199296854)
        print("Yes")
    end
end)

My friend (The owner) joined and the punching animation worked for him and I could see it. I thought it was because he was the owner so I asked him to join on his other account and it still worked, but when I tried to punch it did not work.