Database error: [Table 'ac_posts' is marked as crashed and should be repaired]

SELECT a.*, b.post_content FROM ac_posts a INNER JOIN ac_posts_content b ON a.ID = b.ID WHERE a.ID IN(1577737,1208309,2907681,1205962,1740439,944985,1208164,1409027,2906959,49135,120438,138445,255932,256719,306587,497943,498477,520705,576119,592339) ORDER BY FIELD(a.ID, 1577737,1208309,2907681,1205962,1740439,944985,1208164,1409027,2906959,49135,120438,138445,255932,256719,306587,497943,498477,520705,576119,592339);