JeffDD

Site URL: http://www.foryouth.co
Hi,
I have a website www.foryouth.co that serves Singapore and the rest of the world, au.foryouth.co and I recently set up my.foryouth.co to serve Malaysia.
au.foryouth.co is running for a few months now without any issues. Two weeks ago I set up my.foryouth.co and the subdomain connected perfectly to the DNS records I set up in Go Daddy.
As of yesterday, suddenly the connection was removed. When I went to settings-->domain, I didn't see it anymore. Trying to reconnect gives met the error: 
Domain does not exist
This domain is not in our system.
Sometimes, it does allow me to try and set it up again, but it fails connecting to the first CNAME (the one with the long code).
Does anyone have an idea what is going on? Especially since it was working before?
Of course, Squarespace does not have any weekend support. Like why would they. Websites do not go down during weekends, but hopefully someone here can help me out!

I've been using Squarespace for two days now and this is the 3rd issue I'm running into that seems basic functionality that would save heaps of time and just isn't there while many people are requesting for it... How can this not be a feature?
Just like having separate header images per category and putting a link behind images in simple lists... I guess I'll find 3 more issues today!