Certbot and Letsencrypt on Raspberry Pi 3B with Debian9 stretch generate bogus certificates

Renewal configuration file /etc/letsencrypt/renewal/korimort.freedynamicdns.net.conf produced an unexpected error: expected /etc/letsencrypt/live/korimort.freedynamicdns.net/cert.pem to be a symlink. Skipping.


Found the following certs:
Certificate Name: korimort.freedynamicdns.net-0001
Domains: korimort.freedynamicdns.net
Expiry Date: 2019-05-31 10:07:43+00:00 (VALID: 87 days)
Certificate Path: /etc/letsencrypt/live/korimort.freedynamicdns.net-0001/fullchain.pem
Private Key Path: /etc/letsencrypt/live/korimort.freedynamicdns.net-0001/privkey.pem

The following renewal configurations were invalid:
/etc/letsencrypt/renewal/korimort.freedynamicdns.net.conf