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 first=1' at line 1
SELECT * FROM forum_post WHERE tid= and first=1

PHP Debug

No.FileLineCode
1forum.php63runhooks()
2source/function/function_core.php1130hookscript(%s, %s, %s, Array, %s, %s)
3source/function/function_core.php1177plugin_dsvue_youtubefirst_forum->viewthread_top(Array)
4source/plugin/dsvue_youtubefirst/dsvue_youtubefirst.class.php21discuz_database::query(%s)
5source/class/discuz/discuz_database.php139db_driver_mysqli->query(%s, false, false)
6source/class/db/db_driver_mysqli.php148db_driver_mysqli->halt(%s, %d, %s)
7source/class/db/db_driver_mysqli.php223break()
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