I cannot get domains to map when adding them to my multisite. I am trying to add some domains (to use as aliases and not redirects) to my main site, site ID = 1.
When I go through the process of adding domains, nothing happens.
I also have a warning at the top of my Settings > Domain Mapping when I click save (I have debug on):
Notice: Undefined index: dm_remote_login in /home/xxxxxxxxxxx/public_html/wp-content/plugins/wordpress-mu-domain-mapping/domain_mapping.php on line 289
Any ideas why I can't add domains?