Getting the same warning on the backend…
I got the same warning.
This is no fun, please take time to fix this.
Everyone please read this, http://make.wordpress.org/core/2012/12/12/php-warning-missing-argument-2-for-wpdb-prepare/
Thanks
This happened because of a change in 3.5. Redirection isn’t vulnerable; it was just using $wpdb->prepare() unnecessarily.
Open up models/group.php and change line 70 to:
$rows = $wpdb->get_results( "SELECT {$wpdb->prefix}redirection_modules.name AS module_name,{$wpdb->prefix}redirection_groups.name AS group_name,{$wpdb->prefix}redirection_groups.id FROM {$wpdb->prefix}redirection_groups INNER JOIN {$wpdb->prefix}redirection_modules ON {$wpdb->prefix}redirection_modules.id={$wpdb->prefix}redirection_groups.module_id ORDER BY {$wpdb->prefix}redirection_modules.name,{$wpdb->prefix}redirection_groups.position" );
Worked perfectly! Thanks so much.