データベースエラー： [Out of resources when opening file './wp_niwablo_plus/wp_56_posts.MYD' (Errcode: 24)] SELECT wp_56_posts.* FROM wp_56_posts INNER JOIN wp_56_postmeta ON ( wp_56_posts.ID = wp_56_postmeta.post_id ) WHERE 1=1 AND ( ( wp_56_postmeta.meta_key = '_wp_attachment_is_custom_header' AND CAST(wp_56_postmeta.meta_value AS CHAR) = 'twentytwelve' ) ) AND wp_56_posts.post_type = 'attachment' AND ((wp_56_posts.post_status = 'inherit')) GROUP BY wp_56_posts.ID