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 * from aljzp_attestation where sign=1 and uid=

PHP Debug

No.FileLineCode
1plugin.php47include(%s)
2source/plugin/aljzp/aljzp.inc.php1433discuz_database::fetch_first()
3source/class/discuz/discuz_database.php94discuz_database::query()
4source/class/discuz/discuz_database.php142db_driver_mysqli->query()
5source/class/db/db_driver_mysqli.php148db_driver_mysqli->halt()
6source/class/db/db_driver_mysqli.php223break()
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