Config help request

So this is how it would be registered.

public static final UserConfig USER_CONFIG;

static {
    File file = new File("configuration/" + PLUGIN_ID + "/UserConfig.conf");
    if(!file.exists()){
        try{
            file.mkdirs();
            file.createNewFile();
        }catch(IOException e){
            e.printStackTrace();
        }
    }
    USER_CONFIG = new UserConfig(file);
    
}

@Listener
public void onPlayerJoin(ClientConnectionEvent.Join event) {
    USER_CONFIG.registerUser(p.getUniquieId(), p.getName(), "discord id", "code", "classd");
    USER_CONFIG.save();
}