the overlap has “custom event” at the end of the name, so its not actually an overlap event anymore. try deleting and readding it.
Also why exactly are you using event binding? As far as blueprints go, theres generally no reason to do that unless youre communicating with the level blueprint or a widget.
The way you have this setup right now, if the overlap event in the door fires, it will call the overlap event in the player… which has no logic setup so it wont do anything. Instead, in the door bp, add the overlap event, have that have the logic you need.
if you need it to communicate with the widget, you can have a function setup that the overlap event calls, and then have the widget call that on button press. then call remove all widgets.