Hello, I have such problem:

[Error] - ??????? 05:04:55
File: /pub/home/domain/forum/chatbox.php
Line: 223

PunBB reported: Unable to post message

Database reported: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near ' 'xxx.xxx.xxx.xxx', 'Chat message', 1188111895)' at line 1 (Errno: 1064)

Why can it be?