GameServer OnExit Called ()

I've 16 GB of ram and im only enabling jangan, downghang, hotan and thief town i don't know why it crashes, if i enable only jangan and downhang works fine but i can't believe i only can load 2 regions with 16 GB of ram.. i don't know what can i do..

For the record,I've managed to fix the Gameserver crash..

It turned to be one of several possible reasons :

1-Transport/grab pet inventory slots.
2-Bugged MagParam in _Items, search for MagParam < 0
3-Some uniques (Isy/Yarkan),whenever you attack it,the gameserver crashes after several seconds.