Discuz! Database Error

(144) Table './sq8filmaker/forum_postcomment' is marked as crashed and last (automatic?) repair failed

SELECT * FROM forum_postcomment WHERE pid IN ('847287','847289','847294','847295','847296','847297','847298','847301','847313','847317','847320','847321','847354','847406','847414','847416','847419','847429','847440','847442') ORDER BY dateline DESC

PHP Debug

No.	File	Line	Code
1	forum.php	67	require(%s)
2	source/module/forum/forum_viewthread.php	901	table_forum_postcomment->fetch_postcomment_by_pid(Array, Array, Array, Array, %s)
3	source/class/table/table_forum_postcomment.php	152	discuz_database::query(%s)
4	source/class/discuz/discuz_database.php	139	db_driver_mysql->query(%s, false, false)
5	source/class/db/db_driver_mysql.php	152	db_driver_mysql->halt(%s, %d, %s)
6	source/class/db/db_driver_mysql.php	223	break()