masodikbela

The short answer:
The long answer:
 

I think the problem caused by the dead event trigger (or the kill event trigger, but it is unlikely). Did you do anything whit it? (I think yes, because I didn't find any string like Dead: QUEST no such pc id or Dead:) This problem possibly caused by
void CHARACTER::Dead(LPCHARACTER pkKiller, bool bImmediateDead) in char_battle.cpp but I'm not sure.

Another possibility: (questmanager.cpp)
void CQuestManager::Kill(unsigned int pc, unsigned int npc) If you modified any of this, try to replace with the original.

I hope this will help a little

Because the new clients use localeInfo instead of locale. If you watch your root, you can't see locale.py, but localeinfo.py. Maybe if you use import locale, you won't get any error, but it will call another module, because probably there is a locale.pyc in the client's lib folder.

(anyway, your problem was global name 'locale' is not defined, what means you forgot to write import locale to your source, but if you do it, you will get another error, I explained why)