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 '-24,12' at line 1
select title,img,fileSize,edittime,count,tid,catid from bphp_theme where catid in (5,6,7,8) order by id desc limit -24,12

PHP Debug

No.FileLineCode
1plugin.php48include(%s)
2source/plugin/bphp_theme/down.inc.php178discuz_database::fetch_all(%s)
3source/class/discuz/discuz_database.php106discuz_database::query(%s, Array, false, false)
4source/class/discuz/discuz_database.php142db_driver_mysqli->query(%s, false, false)
5source/class/db/db_driver_mysqli.php148db_driver_mysqli->halt(%s, %d, %s)
6source/class/db/db_driver_mysqli.php223break()
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