Change domain.name to your diredctory
/usr/local/openvpn_as/scripts/sacli --key "cs.priv_key" --value_file "/etc/letsencrypt/live/domain.name/privkey.pem" ConfigPut
/usr/local/openvpn_as/scripts/sacli --key "cs.cert" --value_file "/etc/letsencrypt/live/domain.name/cert.pem" ConfigPut
/usr/local/openvpn_as/scripts/sacli --key "cs.ca_bundle" --value_file "/etc/letsencrypt/live/domain.name/chain.pem" ConfigPut
/usr/local/openvpn_as/scripts/sacli start