SLikeNet™ is an Open Source/Free Software cross-platform network engine written in C++ and specifially designed for games (and applications which have comparable requirements on a network engine like games) building upon the discontinued RakNet network engine which had more than 13 years of active development.
You should fix the lobby2 extension or deprecate it as insecure.
It stores the passwords in cleartext and sends a lost password in cleartext to users email.
You can verify this by just looking into DependentExtensions/Lobby2/PGSQL/Lobby2Message_PGSQL.cpp file and search for a password string.