Title: 's Replies | WordPress.org

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# jjpcmp

  [  ](https://wordpress.org/support/users/jjpcmp/)

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## Forum Replies Created

Viewing 2 replies - 1 through 2 (of 2 total)

 *   Forum: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
   
   In reply to: [WordPress database error on post](https://wordpress.org/support/topic/wordpress-database-error-on-post/)
 *  Thread Starter [jjpcmp](https://wordpress.org/support/users/jjpcmp/)
 * (@jjpcmp)
 * [19 years, 11 months ago](https://wordpress.org/support/topic/wordpress-database-error-on-post/#post-412186)
 * Resolved: Posted here if anyone else gets this error.
 * You cannot use either subscribe2 or wp-email-notification plugins with the posts-
   by-author plugin. Something the plugin does messes with the way posts are handled
   and causes errors.
 *   Forum: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
   
   In reply to: [WordPress database error on post](https://wordpress.org/support/topic/wordpress-database-error-on-post/)
 *  Thread Starter [jjpcmp](https://wordpress.org/support/users/jjpcmp/)
 * (@jjpcmp)
 * [19 years, 11 months ago](https://wordpress.org/support/topic/wordpress-database-error-on-post/#post-412153)
 * Update: It has something to do with the two plugins: subscribe2 and wp-email-
   notification. With both of them off I get zero errors. With subscribe2 activated
   I get this error:
 * 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‘
   AND category_id != 2 AND wp_posts.ID = wp_post2cat.post_id AND ID != ‘ at line
   4]
    SELECT ID, post_title, post_date, post_category FROM wp_posts, wp_post2cat
   WHERE post_author = AND category_id != 2 AND wp_posts.ID = wp_post2cat.post_id
   AND ID != AND post_status = ‘publish’ ORDER BY post_date DESC LIMIT 5
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/jcbjvbj/public_html/wp-includes/wp-db.php:102) in /home/jcbjvbj/public_html/
   wp-admin/post.php on line 60

Viewing 2 replies - 1 through 2 (of 2 total)