Error with wp-blog-header

Everything was working great until my hosting company screwed up and decided to restore my site. Now I am getting the following errors when I visit my page:

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 ‘,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,]
SELECT DISTINCT ID, category_id, cat_name, category_nicename, category_description, category_parent FROM wp_categories, wp_post2cat, wp_posts WHERE category_id = cat_ID AND post_id = ID AND post_id IN (,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,)

Warning: Invalid argument supplied for foreach() in /home/mycekcom/public_html/wp-blog-header.php on line 478

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 ‘,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,]
SELECT ID, COUNT( comment_ID ) AS ccount FROM wp_posts LEFT JOIN wp_comments ON ( comment_post_ID = ID AND comment_approved = ‘1’) WHERE post_status = ‘publish’ AND ID IN (,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,) GROUP BY ID

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 ‘,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,]
SELECT post_id,meta_key,meta_value FROM wp_postmeta WHERE post_id IN(,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,) ORDER BY post_id,meta_key

Any help would be greatly appreciated.

Thanks,
Alex