NPC DB not saving on disconnect. Alternative?

[Novo]

When the npcserver crashes or is disconnected by evil people with RC's, the variables in the database npcs are rolled back to some arbitrary past date. As such, a lot of information is being lost.

To reiterate: Information as money in banks, members in guilds, etc etc... Are being reset to the previous value (and thus, duping can occur) when the NPC Server crashes or is forcefully restarted.

I was wondering if this is a bug... And what is the best procedure to go forward with this?

Thanks