SQL Syntax Error when deleting post

Get the following error when trying to delete a post:

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 ‘ON (wp_posts.ID = .post_id) WHERE post_date > 0 AND category_id <> 0 ‘ at line 4]
SELECT tag_id FROM wp_posts INNER JOIN wp_post2cat ON (wp_posts.ID = wp_post2cat.post_id) INNER JOIN ON (wp_posts.ID = .post_id) WHERE post_date > 0 AND category_id <> 0 AND ID = 931 ORDER By post_date DESC

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 p2c.category_id <> 0 AND p.post_date_gmt < ‘2005-12-28 05:38:03’ ‘ at line 5]
SELECT DISTINCT MONTH(p.post_date) AS month FROM wp_posts p INNER JOIN wp_post2cat p2c ON (p.ID = p2c.post_id ) WHERE YEAR(p.post_date) = AND p2c.category_id <> 0 AND p.post_date_gmt < ‘2005-12-28 05:38:03’ ORDER By p.post_date DESC