Domain mapping is not working since upgrade

Everything worked fine this morning. I installed the newest update for the plugin and now my mapped domains have the following error:

Not Found

The requested URL / was not found on this server.

Apache Server at Port 80

I have removed the following from my wp-config

define('DOMAIN_CURRENT_SITE', '');
define('PATH_CURRENT_SITE', '/');
define('SITE_ID_CURRENT_SITE', 1);
define('BLOG_ID_CURRENT_SITE', 1);

And I tried deactivating and reactiving the plugin to no-avail.

I do have a dedicated IP.

Any other thoughts?