metil on "[Plugin: MailChimp for WordPress] New subscribers Notifications"

Hello My friend!
when guys confirm subscribe form i recieved next message:
but i insert another email for notification of subscribers, can help pls what need , also help pls how be with welcome notification for guys if i disable "Opt-in" function, i want:
they insert email > confirm and in them e-mail will send my message.
br
my web: http://kdfeatured.com (pop up on "Sumbit your photos" Button

New subscription on KD Featured
IMPORTANT! You have received this message because connection to your e-mail marketing software failed. Please check connection setting in the plugin configuration.
The resource submitted could not be validated. For field-specific details, see the 'errors' array. array (
  0 =>
  stdClass::__set_state(array(
     'field' => '',
     'message' => 'Required fields were not provided: email_address',
  )),
  1 =>
  stdClass::__set_state(array(
     'field' => 'email_address',
     'message' => 'Schema describes string, NULL found instead',
  )),
)

E-mail:
Name: --
EMAIL: klochenko@yandex.ru
FNAME: Oleg
LNAME: Klochenko

Form: Theme Builder 30 (757)

Referer: http://kdfeatured.com/
Date: 2016-07-29 17:48
IP: 46.188.101.176

https://wordpress.org/plugins/mailchimp-for-wp/