MySQL FatalError!

Message :

Execute SQL error, message : SQLSTATE[HY000]: General error: 145 Table './xuekebaba/xk_content' is marked as crashed and should be repaired

SELECT b.id AS id,title,description,inputtime,updatetime,click,thumb,nickname,url,b.modelid,b.catid FROM `xuekebaba` . `xk_tag_content` INNER JOIN `xk_content` b ON xk_tag_content.aid=b.id WHERE (tagid = ?) ORDER BY updatetime DESC LIMIT 0,12