After I updated hiawatha and letsencrypt requesting a new certificate does not work any longer:
root@server01:/opt/letsencrypt# ./letsencrypt request ra.xxxxedout.de
Generating RSA key.
Generating Certificate Signing Request (CSR).
- JWS verification error
I found this:
As RSA has been deleted from hiawatha it could provide a problem with letsencrypt