Nao is moving and I don't know why

[r1f1]

I installed this package and all of its plugins and dependecies just as it say nao_gazebo_plugin/README.rst. I have ros indigo on ubuntu 14.04 and gazebo 2.2.3. I have installed ros_control and ros_controllers. I think I have everything installed well but when I execute both nao_gazebo.launch and nao_gazebo_plugin_H25.launch the robot start to move, without having executed anything else. Also, I post on any topic but the robot does not respond.

The following video shows this movement
https://drive.google.com/file/d/13g5vsf1DJ2AjcVr1q3CT2HcLpEuLwY8Q/view?usp=sharing