[Solvedf]Animator is not playing an AnimatorController

Hello guys. I want to change the animation from a Button UI. When I do that I get an error "Animator is not playing an AnimatorController ". I have done the same t$$anonymous$$ng manually, and also from the unity method. But same result.

public void CustomTrigger(string triggerName) {

     Animator anim = t$$anonymous$$s.GetComponent<Animator>();
     if (anim.gameObject.activeSelf)
     {
         anim.SetTrigger(triggerName);
     }
 }