Lorencia zen shop bug - you buy fruit for 1kk and then sell it at the normal shop for 11kk.
When you marry you can buy Box of Kundun +1 at Devias2 shop, many players attempt to scam others and sell them for zen, like 10kk for each.
You should add some firewall rule or something for allowing only 1 client per IP, cause if you open 2 clients with (MuOnline Autoclicker) muonline[dot]ktemelkov[dot]info you can just make 2 accounts and go to Devias3 NPC quest like all the time gaining 200 PC points for each 5 minute run, also gaining good exe items.