WordPress database error: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'OR wp_named_users.group_id IN ( SELECT wp_named_users_groups_relations.g' at line 8]
SELECT wp_posts.* FROM wp_posts WHERE 1=1 AND (wp_posts.ID = '0') AND wp_posts.post_type = 'page' AND wp_posts.ID NOT IN ( SELECT wp_named_users.post_id FROM wp_named_users WHERE wp_named_users.post_id NOT IN ( SELECT wp_named_users.post_id FROM wp_named_users WHERE wp_named_users.user_id = OR wp_named_users.group_id IN ( SELECT wp_named_users_groups_relations.group_id FROM wp_named_users_groups_relations WHERE wp_named_users_groups_relations.user_id = ) ) AND wp_named_users.post_id NOT IN (0) ) ORDER BY wp_posts.post_date DESC

XML-RPC server accepts POST requests only.