Malin
2e1169727e
subscribe_email_to_list() read $existing['data']['id'] before checking is_wp_error($existing), so any failed phpList lookup (e.g. a broken TLS connection to the endpoint) fataled with "Cannot use object of type WP_Error as array" instead of falling through to create-subscriber. Reproduced live on easycut.es: cancelling an order threw this from on_order_cancelled(), causing the admin's ISE 500 (the order status change itself had already committed by then).