Fatal error: Uncaught Error: Call to undefined function add_action() in /home/vzrmenph/public_html/wp-content/plugins/icegram-rainmaker/lite/classes/mailers/mailchimp.php:8 Stack trace: #0 /home/vzrmenph/public_html/wp-content/plugins/icegram-rainmaker/lite/classes/mailers/mailchimp.php(303): Rm_Mailer_Mailchimp->__construct() #1 /home/vzrmenph/public_html/wp-content/plugins/icegram-rainmaker/lite/classes/mailers/config.php(3): require_once('/home/vzrmenph/...') #2 {main} thrown in /home/vzrmenph/public_html/wp-content/plugins/icegram-rainmaker/lite/classes/mailers/mailchimp.php on line 8