Count how many NPCs goes through trigger and chosen one move to location

Hello. I have a lot of NPCs moving in same direction on map through trigger volume, I want to count how many of them went through and for the second one to move to actor location on map and stay there. I created this blueprint but it dont work, can you help me?

Here i am setting that when i start level that 0 NPCs went through trigger volume and that i want second one to do action

Here i am counting how many NPCs went through and the second one is going to move to actor placed on level

OnTouch is meant for touchscreen devices where you use a finger yo touch an actor. You want to use OnBeginOverlap.