How to work with overlapping events in a server?

Does anyone know how to call an overlapping event in a server to the player that overlapped rather than on the client? Sorry I’m a newbie and first time working with servers.
I know you create a custom event that runs on the server, so I have a event begin overlap that calls this event then I cast to the first person character, but this only works in the client, I think I need to get the player array and reference the player through the game state but I’m not sure how to do that, if anyone could help me it would be greatly appreciated.