Error Infomation: MySQL query error!

MySQL Errno:  1194
MySQL Error:  Table 'sun_article_items' is marked as crashed and should be repaired

SQL: SELECT i.*, t.subject AS filetitle, t.filepath, t.filename, (SELECT COUNT(aid) FROM sun_article WHERE itemid=i.itemid) AS total FROM sun_article_items AS i LEFT JOIN sun_attachment AS t ON t.aid=i.ispic WHERE i.posttype<1 AND i.cid IN( 2,211,17,18,12,13 ) ORDER BY posttime DESC LIMIT 100, 20;