Edit File: wp-postratings.php
<?php defined( 'ABSPATH' ) || exit; if ( defined( 'WP_POSTRATINGS_VERSION' ) ) : /** * Conflict with WP-PostRatings: Clear the cache when a post gets rated. * * @since 2.6.6 * * @param int $user_id user ID. * @param int $post_id post ID. */ function rocket_clear_cache_on_wp_postratings_rate( $user_id, $post_id ) { rocket_clean_post( $post_id ); } add_action( 'rate_post', 'rocket_clear_cache_on_wp_postratings_rate', 10, 2 ); endif;