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(1194358,355471,2185489,2833532,3563469,4620709,1220428,3376851,121882,1291653,1685646,2315217,90166,100986,104979,121334,121411,121570,354175,361632) ORDER BY FIELD(a.ID, 1194358,355471,2185489,2833532,3563469,4620709,1220428,3376851,121882,1291653,1685646,2315217,90166,100986,104979,121334,121411,121570,354175,361632);