Animator State Freezing

Hi,

I am really new with Unity, I am making a game, but I am having some problems with the animators, my problem is that I am trying to add some animations to my menu, and also add new characters to my game, but none of my new animations are working. This question is the same that this one :

http://answers.unity3d.com/questions/717046/animator-state-freezing-blue-bar-progress-bar-not.html

What is really interesting is that the first animation that I created in the game works correctly. I have tried several things, but nothing works. I really need help with this.

You can see the images of my error.