Freeze - Failed to compile: 'PlayerMetabolism' does not contain a definition for 'SendChangesToClient' and no accessible extension method 'SendChangesToClient' accepting a first argument of type 'PlayerMetabolism' could be found (are you missing a using directive or an assembly reference?) | Line: 403, Pos: 28

Open the code and delete lines 403 and 428

Don't delete them change to:

ln 403: metabolism.SendChanges();

ln 428: basePlayer.metabolism.SendChanges();