DB Error: unknown error

SELECT * FROM blog_user,blog_news LEFT JOIN blog_category ON blog_category.categoryID = blog_news.categoryID WHERE blog_user.userID = blog_news.userID AND newsDate = '2017-04-24' AND newsStatus=1 AND newsTimeStamp <= 1526815485 AND blog_news.categoryID=2 ORDER BY newsTime desc [nativecode=1034 ** Incorrect key file for table: 'blog_user'. Try to repair it]