TGML Animation with bind

[CHOQUE]

I am writing a script for a given element (rectangle) to start or stop the animation based on a change in a bind. If the bind is 1, the animation starts. If it is 0, it stops and restarts to the initial starting points. However, in the test section (Alt 7), the bind is called STS. There is no initial value assigned to it. The object starts the animation. If I enter 1 or 0, it follows my logic. I leave a notepad with the source code of the screen.