Posting Error Message

I’m using 2.3, and I have a photoblog with Taly’s Click theme. This is the first time I’ve posted since I’ve upgraded, and when I posted, I got the message below – however, the post still posted. When I edited the post, I also got the same message. Any ideas what I should do to fix this? https://www.torontobroad.com.

WordPress database error: [Table 'd60158592.wp_post2cat' doesn't exist]
SELECT cat_ID AS ID, MAX(post_modified) AS last_mod FROM <code>wp_posts</code> p LEFT JOIN <code>wp_post2cat</code> pc ON p.ID = pc.post_id LEFT JOIN <code>wp_categories</code> c ON pc.category_id = c.cat_ID WHERE post_status = 'publish' GROUP BY cat_ID

WordPress database error: [Table 'd60158592.wp_post2cat' doesn't exist]
SELECT cat_ID AS ID, MAX(post_modified) AS last_mod FROM <code>wp_posts</code> p LEFT JOIN <code>wp_post2cat</code> pc ON p.ID = pc.post_id LEFT JOIN <code>wp_categories</code> c ON pc.category_id = c.cat_ID WHERE post_status = 'publish' GROUP BY cat_ID

Warning: Cannot modify header information - headers already sent by (output started at /mnt/w0511/d46/s20/b024d5f9/www/blog/wp-includes/wp-db.php:160) in /mnt/w0511/d46/s20/b024d5f9/www/blog/wp-includes/pluggable.php on line 390