I made an account to try it for my portfolio. I filled in the details while editing the free trial website and now I can't access my original squarespace domain which is allisonmorales.com.
This is the error that gives me:
This site can’t be reached
www.allisonmorales.com’s server IP address could not be found.
I am seeing a SquareSpace website on the domain mentioned.
Use GoCentral on a temporary domain, and don't add your domain until you're ready for that to be the site.