I purchased Cornerstone from Envato. And, I added the license. Then, X tells me:
" This looks like a brand new license that hasn’t been added to a Themeco account yet. Login to your existing account or register a new one to continue."
When I click on the link to Login and Validate, I get an error.
Oh my. It looks like this page has been lost."
I had to register a new ThemeCo account and set up the URL, but not working.