I was installing 3 Mailchimp Pluggins (WooCommerce MailChimp MailChimp for WordPress + anther one) at the same time. When trying to activate them I
got an error about API Key.
I manged to generate API Key for Mailchimp and add it to one of the pluggins but still I was getting error message.
At this moment I am not able to log in to my WP-admin at all.
I am getting this error message.
Unable to load lists() from MailChimp: (104) API Key can not be blank
Warning: Cannot modify header information - headers already sent by (output started at /home/redpointtailor.com/public_html/redpointtailor.com/wp-content/plugins/woocommerce-mailchimp/classes/class-ss-wc-integration-mailchimp.php:304) in /home/redpointtailor.com/public_html/redpointtailor.com/wp-includes/pluggable.php on line 1173
What shall I adjust to have it fix?
Thanks in advance