Hello I have the same error when logging in to my website, can you please fix this. thank you.
Catchable fatal error: Argument 1 passed to Sendinblue::set_email_cookie() must be an instance of string, string given, called in /var/kunden/webs/kd30257/wp-content/plugins/mailin/inc/sendinblue.php on line 84 and defined in /var/kunden/webs/kd30257/wp-content/plugins/mailin/inc/sendinblue.php on line 62
