Fatal error: Uncaught exception 'Mailchimp_ValidationError' with message 'The email parameter should include an email, euid, or leid key' in /home/frankies/public_html/Mailchimp.php:253 Stack trace: #0 /home/frankies/public_html/Mailchimp.php(228): Mailchimp->castError(Array) #1 /home/frankies/public_html/Mailchimp/Lists.php(762): Mailchimp->call('lists/unsubscri...', Array) #2 /home/frankies/public_html/unsubscribe.php(28): Mailchimp_Lists->unsubscribe('78aa0ddece', Array, true, true) #3 {main} thrown in /home/frankies/public_html/Mailchimp.php on line 253