Unable to log into site after changes

A few days ago I linked my domain (hosted by whois.com) to a new SquareSpace site I plan on using.

A day ago I un-linked the domain because I needed access to my original wordpress website(for reference purposes) which should technically be available to me by using: audiationmusic.com/wp-login.php – It isn’t available at all, I cannot get into my wordpress site no matter what I’ve tried.

Now when I access the above domain, I have the option to enter my WP credentials but… after clicking login I am directed to the same image that displays when typing: audiationmusic.com

Please help me figure out what has occured that has made either the DB or domain so lost that I cannot login to see my original wordpress site

Thanks for all the help in advance, I just want to get this up before the new year.