bbs.moonyueqi.com - Database Error

(1292) Truncated incorrect INTEGER value: ''

SELECT a.* FROM forum_collectionthread a inner join forum_thread b on a.tid=b.tid WHERE a.ctid=3 order by get_first_number_for_str( b.subject ),b.subject LIMIT 20, 20

PHP Debug

No.	File	Line	Code
1	forum.php	133	require(%s)
2	source/module/forum/forum_collection.php	37	require_once(%s)
3	source/include/collection/collection_view.php	75	table_forum_collectionthread->fetch_all_by_ctid_order_subject()
4	source/class/table/table_forum_collectionthread.php	43	discuz_database::fetch_all()
5	source/class/discuz/discuz_database.php	106	discuz_database::query()
6	source/class/discuz/discuz_database.php	142	db_driver_mysqli->query()
7	source/class/db/db_driver_mysqli.php	148	db_driver_mysqli->halt()
8	source/class/db/db_driver_mysqli.php	223	break()

Discuz! Database Error