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(1577641,2658743,4584670,5050086,4310777,1417814,1538129,468306,624212,1519280,1519570,1586741,2584599,2743405,4475714,4594357,4806614,4877643,5089184,388377) ORDER BY FIELD(a.ID, 1577641,2658743,4584670,5050086,4310777,1417814,1538129,468306,624212,1519280,1519570,1586741,2584599,2743405,4475714,4594357,4806614,4877643,5089184,388377);