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