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 'and uid>0' at line 1
select uid,username from common_session where tid= and uid>0

PHP Debug

No.FileLineCode
1forum.php65runhooks()
2source/function/function_core.php1130hookscript(Array, Array)
3source/function/function_core.php1177plugin_lexin_msuser_forum->viewthread_top(Array)
4source/plugin/lexin_msuser/mmuser.class.php31discuz_database::fetch_all(%s)
5source/class/discuz/discuz_database.php101discuz_database::query(%s, Array, false, false)
6source/class/discuz/discuz_database.php137db_driver_mysql->query(%s, false, false)
7source/class/db/db_driver_mysql.php152db_driver_mysql->halt(%s, %d, %s)
8source/class/db/db_driver_mysql.php223break()
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