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(697227,1852332,4868466,29987,33751,73951,75249,75314,209077,238729,456354,483517,630699,630701,630704,651973,660346,675302,675303,697052) ORDER BY FIELD(a.ID, 697227,1852332,4868466,29987,33751,73951,75249,75314,209077,238729,456354,483517,630699,630701,630704,651973,660346,675302,675303,697052);