[PROBLEM] with uichat

Hello i have problem with

HTML Code:

http://www.elitepvpers.com/forum/metin2-pserver-guides-strategies/2468526-release-modified-uichat-py-2.html

Code:

1126 21:52:53684 :: Traceback (most recent call last):

1126 21:52:53684 ::   File "uiChat.py", line 454, in OnIMEReturn

1126 21:52:53684 ::   File "uiChat.py", line 356, in __SendTalkingChatPacket

1126 21:52:53684 ::   File "uiChat.py", line 318, in __SendChatPacket

1126 21:52:53684 ::   File "uiChat.py", line 213, in set_color_micha

1126 21:52:53684 :: AttributeError
1126 21:52:53684 :: : 
1126 21:52:53684 :: 'int' object has no attribute 'split'
1126 21:52:53684 ::

Help me with that

Or can you give me another chance how to block /level only with writing on client ? Because i'd like to use that command in quest ( command("level 15")) but i dont want players to use command level .