Synology DSM 5 - Renew Certificate failed

To resume :

  • my server wasn’t served the HTTP 80 requests => I launch webserver on port 80
  • The NAT on my Freebox haven’t translation port on 80 => I add it on Freebox admin console
  • I upgraded the acme.sh by command : ./acme.sh --upgrade
  • I copied my domain directory to the new directory of acme : cp -p -R home.rolland.net/ /volume1/homes/admin/acme
  • I renew my certificate with this command : ./acme.sh --renew -d home.rolland.net