In the last day (about 5 days after 2.1 update) I've been having more buggy behavior on my blog. Any changes I made in theme or options didn't show up on the blog even if it did in the admin panel. Now my theme is completely gone followed by this error:
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 '' at line 1]
SELECT cat_id, cat_name FROM
Any clues? Anyone?