Discuz! Database Error

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

SELECT * FROM forum_postcache WHERE `pid` IN('6439324','6439338','6439339','6439351','6439352','6439357','6439388','6439391','6439413','6439423','6439430','6439434','6439438','6439491','6439501','6439502','6439529','6439573','6439586')

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()