The MailChimp PHP library is missing the required GuzzleHttp library. Please check the installation notes in README.txt.
Notice: Trying to get property of non-object στην mailchimp_signup_subscribe_form() (γραμμή 326 του /home/gdlrkqcv/public_html/sites/all/modules/mailchimp/modules/mailchimp_signup/mailchimp_signup.module).
Notice: Undefined index: placeholder στην mailchimp_signup_subscribe_form() (γραμμή 333 του /home/gdlrkqcv/public_html/sites/all/modules/mailchimp/modules/mailchimp_signup/mailchimp_signup.module).
Notice: Undefined index: placeholder στην mailchimp_signup_subscribe_form() (γραμμή 333 του /home/gdlrkqcv/public_html/sites/all/modules/mailchimp/modules/mailchimp_signup/mailchimp_signup.module).
Notice: Undefined index: placeholder στην mailchimp_signup_subscribe_form() (γραμμή 333 του /home/gdlrkqcv/public_html/sites/all/modules/mailchimp/modules/mailchimp_signup/mailchimp_signup.module).
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