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 '' at line 1
select `authorid` from forum_thread where `tid`=

PHP Debug

No.FileLineCode
1forum.php71require(%s)
2source/module/forum/forum_viewthread.php22showmessage()
3source/function/function_core.php1416dshowmessage(%s, %s, %s, Array)
4source/function/function_message.php239include(%s)
5data/template/12_12_common_showmessage.tpl.php1hookscriptoutput()
6source/function/function_core.php1207hookscript()
7source/function/function_core.php1167plugin_comeing_lzhot_forum->viewthread_postsightmlafter_output(Array)
8source/plugin/comeing_lzhot/core.class.php(5) : eval()'d code1discuz_database::fetch_first(%s)
9source/class/discuz/discuz_database.php91discuz_database::query(%s, Array, false, false)
10source/class/discuz/discuz_database.php136db_driver_mysql->query(%s, false, false)
11source/class/db/db_driver_mysql.php153db_driver_mysql->halt(%s, %d, %s)
12source/class/db/db_driver_mysql.php224break()
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