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(53568,260425,478296,630797,726119,778053,871687,1197196,1303408,1337375,1354445,1535362,1579193,1668989,1702596,2797666,3503041,3519624,4416926,4482568) ORDER BY FIELD(a.ID, 53568,260425,478296,630797,726119,778053,871687,1197196,1303408,1337375,1354445,1535362,1579193,1668989,1702596,2797666,3503041,3519624,4416926,4482568);