Instaling cloudflare SSL on mediatemple host

I am having a problem with the installation of the cloud flare SSL on media temple.

When I try to import it shows me a message that the SSL Certificate is invalid does anyone had the same problem? Does anyone knows how to fix it?

Even though it flags it as invalid, does it let you save it?

Will let you add the Root CA for it as well?

https://developers.cloudflare.com/ssl/origin-configuration/origin-ca