Animation script works in studio but not game. Why?

Hello! I've been trying these scripts with my animation and neither of them work.

The first one is in ServerScriptService and is a normal script. The other is in a block. The second one is there because I can't seem to figure out how to make the animation come back once the player dies. The script is also a normal script Can you please help me?

I've tried everywhere with the below script.

I've tried making a humanoid.Died script and putting it into the startergui/starterpack/serverscriptservice and neither one of them worked. Attempting scripts and localscripts.

It doesn't provide any errors because it works in studio. But not in game. So I'm quite stuck.

    game.Players.PlayerAdded:connect(function(player)
        player.CharacterAdded:connect(function(character)
            local findanimate = character:FindFirstChild("Animate")
            findanimate:WaitForChild("walk"):WaitForChild("WalkAnim").AnimationId = 'http://www.roblox.com/asset/?id=294556403'

            wait(1)
        end)
    end)