Discuz! Database Error

(144) Table '.\bbs\forum_post' is marked as crashed and last (automatic?) repair failed
SELECT position FROM forum_post WHERE tid=617486 ORDER BY position DESC LIMIT 1

PHP Debug

No.FileLineCode
1forum.php71require(%s)
2source/module/forum/forum_viewthread.php386table_forum_post->fetch_maxposition_by_tid(%s, %s)
3source/class/table/table_forum_post.php49discuz_database::result_first(%s, Array)
4source/class/discuz/discuz_database.php117discuz_database::query(%s, Array, false, false)
5source/class/discuz/discuz_database.php136db_driver_mysql->query(%s, false, false)
6source/class/db/db_driver_mysql.php153db_driver_mysql->halt(%s, %d, %s)
7source/class/db/db_driver_mysql.php224break()
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