How I can toggle a light with a trigger box?

My name is Gabriele and I’m an Italian developer

I’m trying to make a game like rocket league (score goals whit a car) But whit levels, so you must to score the goal to proceed to the next level

I’m following some YouTube tutorials but the trigger refuses to work, how I can make a blueprint that toggle some lights when the player score?

Plz forgive grammatical mistakes, my English isn’t much good

You follow tutorial, it works.

Or post pictures of that blueprint you are doing something wrong, probably some silly mistake somewhere.