Błędy najprawdopodomniej przez WP-PostRatings

Witam. Mam problem najprawdopodobniej z wtyczką WP-PostRatings ( http://wordpress.org/extend/plugins/wp-postratings/ ). Wczyczka działa, ale generuje następujące błędy:

[29-Jul-2009 23:30:12] 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 for query SELECT rating_username, rating_rating, rating_ip FROM wp_ratings WHERE rating_postid =  made by require, require_once, do_feed, do_action, call_user_func_array, do_feed_rss2, load_template, require_once, the_post, WP_Query->the_post, do_action_ref_array, call_user_func_array, get_comment_authors_ratings
[29-Jul-2009 23:30:16] 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 for query SELECT rating_username, rating_rating, rating_ip FROM wp_ratings WHERE rating_postid =  made by require, require_once, include, include, WP_Query->the_post, do_action_ref_array, call_user_func_array, get_comment_authors_ratings

…i to praktycznie co kilka sekund. Proszę o pomoc.