First of all thanks for your great work on trying to make Internet more secure place. I am hosting my app on openshift, so I generated certificates manually:
./letsencrypt-auto -a manual -d www.digrin.com --server https://acme-v01.api.letsencrypt.org/directory --agree-dev-preview
I uploaded those certificates to openshift (I tried chan1.pem as well as fullchain1.pem), but I get B rating and Chain incomplete message.
What am I doing wrong? I used Easy mode when generating certificates. I wrote an article how to implement letsencrypt on openshift with django in Slovak.