Widget and trigger box in the VR Template

Hi !
I am trying to add a text, images, etc (widget) to a trigger box.

entering the trigger box makes the text appears and the otherwise.

  1. placed the trigger box
  2. created the UI widget
  3. created the blueprint class (actor), added widget component.
  4. placed the actor inside my triggerbox
  5. THE PROBLEM:
    I have created an event to the trigger box in the level blue print ___ did not work
    I have created an event to the actor (the widget component) in the event graph and it did not work.

what is the solution for the VR Template?