Vanish - Failed to compile: 'BasePlayer' does not contain a definition for 'StableIndex' and no accessible extension method 'StableIndex' accepting a first argument of type 'BasePlayer' could be found (are you missing a using directive or an assembly reference?) | Line: 448, Pos: 62

Change this: if (config.AntiHack) player.ResetAntiHack(player.ActivePlayerInd, AntiHack.PlayerSpeedhackStates, AntiHack.PlayerFlyhackStates);

to this: if (config.AntiHack) player.ResetAntiHack(player.StableIndex, AntiHack.PlayerSpeedhackStates, AntiHack.PlayerFlyhackStates);

Next find this if and comment or remove the if itself so only the method is left:

//if ((!ServerOcclusion.OcclusionEnabled ? false : BasePlayer.UseOcclusionV2))
//{
player.OcclusionMakeSubscribersForget();
//}

and last change player.metabolism.SendChangesToClient(); to player.metabolism.SendChanges();

Its only a hotfix, and the creator need to fix it :)