why this error on dragon soul

[deadman 41]

Well guys, i installed quest of dragon soul (oficial quest), and i have this error on sysser.

 

SYSERR: Aug  2 13:21:07.216101 :: RunState: LUA_ERROR: [string "dragon_soul"]:5: attempt to call global `drop_gamble_with_flag' (a nil value)

SYSERR: Aug  2 13:21:07.216138 :: WriteRunningStateToSyserr: LUA_ERROR: quest dragon_soul.state_learning letter

 

SYSERR: Aug  2 13:15:45.475912 :: RunState: LUA_ERROR: [string "dragon_soul"]:5: attempt to call global `drop_gamble_with_flag' (a nil value)

SYSERR: Aug  2 13:15:45.476173 :: WriteRunningStateToSyserr: LUA_ERROR: quest dragon_soul.state_learning leave

 

 

[Night 381]

i think that this is like 3rd-4th time i see this question on this forum (3 time this week only) 

look here and next time use google :

http://metin2dev.org/board/topic/1873-syserr-metin2-game-40k/?p=13304