Npc Problems

[Artorias]

when i try to talk with any npcs on my server they don't anwser me
in the server log appers this:

[error - npcscript interface]
data/npc/scripts/promotion.luanCreatureSay
description:
data/npc/lib/npcsystem/npchandler.lua:551: attempt to call global 'getDistanceTo' (a nil value)
stack traceback:
data/npc/lib/npcsystem/npchandler.lua:551:in function 'isInRange'
data/npc/lib/npcsystem/npchandler.lua:374: in function 'onCreatureSay'
data/npc/scripts/promotion.lua:7: in function <data/npc/scripts/promotion.lua:7
-this happens with all npcs-

 

[denoxin]

the function "getDisanceTo" and isInRange doesn't are in your serv, i think this.

 

[Artorias]

what should i put instead? >.<

 

[Limos]

http://otland.net/threads/cant-talk-to-npc.168734/#post-1631363