Yes...
root@debian:/etc/letsencrypt# ./miazza.no-ip.biz.sh
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator apache, Installer None
An unexpected error occurred:
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='acme-v02.api.letsencrypt.org', port=443): Max retries exceeded with url: /directory (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x759a6f70>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution'))
Please see the logfiles in /var/log/letsencrypt for more details.