Discuz! Database Error

(145) Table '.\newbbs\forum_postcache' is marked as crashed and should be repaired

SELECT * FROM forum_postcache WHERE `pid` IN('6872415','6872416','6872417','6872440','6872441','6872443','6872447','6872448','6872449','6872461','6872463','6872468','6872539','6872558','6872560','6872563','6872565','6872567','6872568')

PHP Debug

No.	File	Line	Code
1	forum.php	67	require(%s)
2	source/module/forum/forum_viewthread.php	875	discuz_table->fetch_all(Array)
3	source/class/discuz/discuz_table.php	110	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()