WpBruiser problem

Using shortcode [wppb-login] there is a problem with WpBruiser plugin.
Access with standard wordpress shortcut /wp-login.php work fine, but when use the shortcode u cannot access. To solve the problem you need to insert in withelist your ip address. WpBruiser indicates in Blocking Reason: Token Not Submitted.
I hope you can solve this problem. Thanks in advice. Massimiliano

The page I need help with: [log in to see the link]