Discuz! Database Error

(1064) 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 ')) ORDER BY t.tid DESC LIMIT 500' at line 1
SELECT * FROM forum_thread t WHERE (t.subject LIKE '%智能电视文件管理器%' AND ()) ORDER BY t.tid DESC LIMIT 500

PHP Debug

No.FileLineCode
1plugin.php47include(%s)
2source/plugin/onexin_keywords/onexin_keywords.inc.php222onexin_keywords_getwords(%s, %s)
3source/plugin/onexin_keywords/onexin_keywords.inc.php341discuz_database::query(%s)
4source/class/discuz/discuz_database.php142db_driver_mysql->query(%s, false, false)
5source/class/db/db_driver_mysql.php152db_driver_mysql->halt(%s, %d, %s)
6source/class/db/db_driver_mysql.php223break()
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