Missing argument 2 for wpdb::prepare()

The plugin is causing an error on WordPress 3.6. Lines 238 and 240 of author-love.php need to have “$wpdb->prepare” removed. Here are a couple links that helped me solve the problem on my own:
http://wordpress.org/support/topic/missing-argument-2-for-wpdbprepare-17
http://make.wordpress.org/core/2012/12/12/php-warning-missing-argument-2-for-wpdb-prepare/

http://wordpress.org/plugins/author-love/