Hi there ThemeCo staff, I seem to be having the same issue but can not get it resolved with my host at Siteground. I’ve spent over an hour now with them trying to sort it out and still not getting any further.
Here is what they sent me at the end of our support chat:
Antonia P.: This is the very first of the requirements which you have sent me ‘‘Ensure my site can reach this domain: community.theme.co’’ and currently your site cannot reach this URl because of the SSL not active
Antonia P.: this is not related with your SSL bbut their own:
Subject: community.theme.co
Issuer: cPanel, Inc. Certification Authority
Expires on: 5.04.2018 г.
Current date: 10.04.2018 г.
Antonia P.: And your site should be able to access it in order to complete the validation
thanks for any help!