C++ Strange problem with closing door when actor end overlap

Guys, I have strange problem I am learning c++ and I want to make door open on begin play (this works) and closed when player end overlap the trigger. I have only one scrpit. Player is in this trigger when start game.

CPP

.H

The problem is that my VS2017 underline and get error here (PHOTO)
Someone can help me plz :wink:

1.I know that my variables is not in English
2.I know that making it in BP is better and easier