Got error after updating to wp3.5 and AVH 3.5.1

I just updated to wordpress 3.5 and then AVH First Defense Against Spam made me update their plugin to 3.5.1. On my plugin Overview I’m getting the following errors:

Warning: Missing argument 2 for wpdb::prepare(), called in /home/siteusername/public/wp-content/plugins/avh-first-defense-against-spam/class/avh-fdas.admin.php on line 357 and defined in /home/siteusername/public/wp-includes/wp-db.php on line 990

Warning: Missing argument 2 for wpdb::prepare(), called in /home/siteusername/public/wp-content/plugins/avh-first-defense-against-spam/class/avh-fdas.admin.php on line 358 and defined in /home/siteusername/public/wp-includes/wp-db.php on line 990

Warning: Missing argument 2 for wpdb::prepare(), called in /home/siteusername/public/wp-content/plugins/avh-first-defense-against-spam/class/avh-fdas.admin.php on line 359 and defined in /home/siteusername/public/wp-includes/wp-db.php on line 990

https://www.ads-software.com/extend/plugins/avh-first-defense-against-spam/