Reconfigure / Update / Renew expired certificate with Gitlab CE
If cron job failed to run it wasn't noticed you may have to make another request for your gitlab certificate. Here's a one liner that should help point you into the right direction. /root/letsencrypt/letsencrypt-auto certonly -c /root/letsencrypt-config/gitlab.ini then ./letsencrypt-auto renew then gitlab-cfg restart