The member who took over the mod before passed away.
This is not the first time that Lain has disappeared.
Do not dive right in if anyone else tries to take over and update Lains mod, because it is more complex than most mods.
LordAshram did a great job on it, but sadly he is the one that passed away.
Others who tried to take over caused a lot of people to suffer crashes.
Fortunately, from what I understand, Lain did fix the crash that would happen when people tried to play without the mod, after previously having used the mod.
So, it should be safe for people who previously used the mod to play without the mod now.
DO NOT TRY TO USE THE 17.2 or any older mods in this version of Harem Hotel.
It will crash the game 100% of the time.