More problems!

[Demyx]

If player have the amout of money the item cost the items is free, also the player does not recive money if he sells at npc

I get this error

[04/10/2008 17:09:44] data/npc/lib/npcsystem/npchandler.lua:285: bad argument #1 to 'gsub' (string expected, got nil)
[04/10/2008 17:09:44] stack traceback:
[04/10/2008 17:09:44] [C]: in function 'gsub'
[04/10/2008 17:09:44] data/npc/lib/npcsystem/npchandler.lua:285: in function 'parseMessage'
[04/10/2008 17:09:44] data/npc/lib/npcsystem/modules.lua:896: in function 'callbackOnBuy'
[04/10/2008 17:09:44] data/npc/lib/npcsystem/npchandler.lua:243: in function 'processModuleCallback'
[04/10/2008 17:09:44] data/npc/lib/npcsystem/npchandler.lua:416: in function 'onBuy'
[04/10/2008 17:09:44] data/npc/lib/npcsystem/modules.lua:985: in function <data/npc/lib/npcsystem/modules.lua:985>

Tried different npc libs and scripts