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 tid = 121268' at line 1
select tableid,aid,uid from forum_attachment where uid = and tid = 121268

PHP Debug

No.FileLineCode
1plugin.php50include(%s)
2source/plugin/xnh2018/xnh2018.inc.php66find_img_by_authorid_tid(%s, %d)
3source/plugin/xnh2018/xnh2018.inc.php11discuz_database::fetch_first(%s)
4source/class/discuz/discuz_database.php131discuz_database::query(%s, Array, false, false)
5source/class/discuz/discuz_database.php176db_driver_mysql->query(%s, false, false)
6source/class/db/db_driver_mysql.php192db_driver_mysql->halt(%s, %d, %s)
7source/class/db/db_driver_mysql.php263break()
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