I also followed the instructions here with no luck, when attempting to re-provision, it fails at letsencrypt : Generate the initial certificate with:
Provided agreement URL [https://letsencrypt.org/documents/LE-SA-v1.0.1-July-27-2015.pdf] does not match current agreement URL [https://letsencrypt.org/documents/LE-SA-v1.1.1-August-1-2016.pdf]