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 invisible=0' at line 1
select * from forum_post where pid=1510825 and tid= and invisible=0

PHP Debug

No.FileLineCode
1zmfybaodao.php27discuz_database::query()
2source/class/discuz/discuz_database.php142db_driver_mysqli->query()
3source/class/db/db_driver_mysqli.php148db_driver_mysqli->halt()
4source/class/db/db_driver_mysqli.php223break()
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