Lua my /promote error

[Ribbit]

i get this error when i try to promote someone in my server

[24/07/2013 22:52:44] Lua Script Error: [TalkAction Interface]
[24/07/2013 22:52:44] data/talkactions/scripts/promote.luanSay
[24/07/2013 22:52:44] data/talkactions/scripts/promote.lua:12: attempt to call global 'getPlayerByNameWildcard' (a nil value)
[24/07/2013 22:52:44] stack traceback:
[24/07/2013 22:52:44] [C]: in function 'getPlayerByNameWildcard'
[24/07/2013 22:52:44] data/talkactions/scripts/promote.lua:12: in function <data/talkactions/scripts/promote.lua:5>

 

[Powtreeman]

i think wildcard is wrong? someone help. i need this