Domain Mapping Error "Missing or invalid site address."

I am getting errors when trying to use the Domain Mapping System. I have:

#1 - Setup dns to direct to ip address, and *.domain for sub domains.

#2 - Installed both plugins domain mapping & multi-domains

#3 - Edited both the config & .htaccess files as recommended

#4 - Added the sunrise file in folders as required

But for some reason I keep getting errors on making the system work. Each time I make an edit, the page will not properly load. I have used siteground for the hosting provider, and added multisite as part of the hosting plan.