Error Message since upgradint to Buddypress 1.6.2

The error message ist Warning: Missing argument 2 for wpdb::prepare(), called in …/wp-content/plugins/elvito-bp/frontend.php on line 50 and defined in …/wp-includes/wp-db.php on line 990
Haven’t tested whether any functions are affected yet.

http://wordpress.org/extend/plugins/elvito-bp/