error message

i just upgraded to 2.3.1. i’m using a fairly old theme (dixiebell). now i’m getting an error message every time i try to save a post or page:

WordPress database error: [Table ‘iloveswe_wrdp1.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

anyone have any ideas?

thanks,
julian