Client widget issue

I thought I had learned things about unreal multiplayer until I came to the widget part, but these widgets confused me a lot, what I am trying to do is the bank, it is different for each player, players can basically cheat, I have no problem with this, because it is the kind of game that you can only play with your pve-oriented friends. I understood the widget part that it works on its own client, I know that the player control works on both the server and the owning client side, but why is this thing not working? If I click on the bank from the client side, the server side opens. Even if the server itself does not click, the client cannot open it to its own screen. or both were opening at the same time in my previous attempts. I can’t find a decent resource on the internet. It will teach with real applications. please help me.