WordPress Database Error

what version of WordPress and MySql are you using? also are you installing or creating a Plug-in.

Because it look like that you are trying to run a custom MySql query and you have a bad syntax.

I am using MySQL server version 5.1.36 and I have installed wp-postratings plugin. I have found something here

yes it looks like that there is a problem with the plugin “wp-postratings” try to contact the developer and see if they can fix it.

for the moment I recommend removing the plugin or see if you can find a similar plugin that you can use

or you have to open the plugin file and replace the code :

add_action('loop_start', 'get_comment_authors_ratings');
function get_comment_authors_ratings() {
	global $wpdb, $post, $comment_authors_ratings;
	$comment_authors_ratings = array();
    if($post->ID) {
		$comment_authors_ratings_results = $wpdb->get_results("SELECT rating_username, rating_rating, rating_ip FROM $wpdb->ratings WHERE rating_postid = ".$post->ID);
	}
	if($comment_authors_ratings_results) {
		foreach($comment_authors_ratings_results as $comment_authors_ratings_result) {
			$comment_author = stripslashes($comment_authors_ratings_result->rating_username);
			$comment_authors_ratings[$comment_author] = $comment_authors_ratings_result->rating_rating;
			$comment_authors_ratings[$comment_authors_ratings_result->rating_ip] = $comment_authors_ratings_result->rating_rating;
		}
	}
}

with

add_action('loop_start', 'get_comment_authors_ratings');
function get_comment_authors_ratings() {
	global $wpdb, $post, $comment_authors_ratings;
	if(!is_feed() && !is_admin()) {
		$comment_authors_ratings = array();
		if($post->ID) {
			$comment_authors_ratings_results = $wpdb->get_results("SELECT rating_username, rating_rating, rating_ip FROM $wpdb->ratings WHERE rating_postid = ".$post->ID);
		}
		if($comment_authors_ratings_results) {
			foreach($comment_authors_ratings_results as $comment_authors_ratings_result) {
				$comment_author = stripslashes($comment_authors_ratings_result->rating_username);
				$comment_authors_ratings[$comment_author] = $comment_authors_ratings_result->rating_rating;
				$comment_authors_ratings[$comment_authors_ratings_result->rating_ip] = $comment_authors_ratings_result->rating_rating;
			}
		}
	}
}

thanks