Table doesn’t exist error

I just upgraded to the latest version, and now I get the following error when I save a new post or delete one. Any help is greatly appreciated.

WordPress database error: [Table ‘ivweb36_dining2.wp_post2cat’ doesn’t exist]
SELECT cat_ID AS ID, MAX(post_modified) AS last_mod FROM wp_posts p LEFT JOIN wp_post2cat pc ON p.ID = pc.post_id LEFT JOIN wp_categories c ON pc.category_id = c.cat_ID WHERE post_status = ‘publish’ GROUP BY cat_ID