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(660077,688638,691939,692129,2369677,686074,1198573,2427308,4175506,1215801,751044,2824586,3180417,4175497,50213,94642,128227,135247,205805,237818) ORDER BY FIELD(a.ID, 660077,688638,691939,692129,2369677,686074,1198573,2427308,4175506,1215801,751044,2824586,3180417,4175497,50213,94642,128227,135247,205805,237818);