Trouble integrating a lobby menu plugin for a LAN Party fighting game

hello folks
i need help to create a fighting game for a lan party.
In the game the participants of the lan party play their own character (meta human, already works). I have designed a device where the players get an electric shock when they take damage (it already works).
I am working with 2 plugins to create the game, one is a lobby menu and the other is a plugin for the fighting game.
now i want to combine both with each other. There is a tutorial, but apparently there are more changes to be made. Unfortunately I don’t know how it works. I also need to define the win conditions. Can someone please help me?
these are the plugins I am using
https://www.unrealengine.com/marketplace/en-US/product/lobby-system-x
https://www.unrealengine.com/marketplace/en-US/product/true-fighting-game-engine

I would really appreciate your help
Christian