Not connection Mailchimp and Drupal between

Hello!

I installed the modul. I generated a API key on the Mailchimp website. This key insert the Drupal site "admin/config/services/mailchimp", but nothing happens. The site does not appear in the Mailchimp Authorized Applications on interface.

I don't get any error message. I don't know what is the error.

Please help for me, that I can to fix the error.

Thx

KALMI