DB Error: unknown error

SELECT * FROM blog_user,blog_news WHERE newsDate BETWEEN '2012-04-01' AND '2012-04-30' AND blog_user.userID = blog_news.userID AND newsStatus=1 AND newsTimeStamp <= 1532305276 GROUP BY newsDate ORDER BY newsDate ASC [nativecode=1034 ** Incorrect key file for table: 'blog_user'. Try to repair it]