Nginx Proxy Manager LE Renew Cert (DNS Fehler?)

Hallo

Ich habe irgendwo einen fehler? Ich vermute mal in meiner pfSense (dort hab ich einen DNS Resolver an, pfBlockerNG)...
Das problem: wollte meinen Server welcher in einer DMZ hängt das Zertifikat erneuern lassen.

hier mal der auszug aus der log vom Nginx Proxy Manager:

[1/16/2022] [9:28:37 PM] [SSL ] › ℹ info Renewing Let'sEncrypt certificates for Cert #7: meinedomain.com,
[1/16/2022] [9:28:37 PM] [SSL ] › ℹ info Command: certbot renew --force-renewal --non-interactive --config "/etc/letsencrypt.ini" --cert-name "npm-7" --preferred-challenges "dns,http" --disable-hook-validation ,
[1/16/2022] [9:30:57 PM] [Express ] › ⚠ warning Command failed: certbot renew --force-renewal --non-interactive --config "/etc/letsencrypt.ini" --cert-name "npm-7" --preferred-challenges "dns,http" --disable-hook-validation ,
Saving debug log to /var/log/letsencrypt/letsencrypt.log,
Failed to renew certificate npm-7 with error: HTTPSConnectionPool(host='acme-v02.api.letsencrypt.org', port=443): Max retries exceeded with url: /directory (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f01d349eef0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')),
All renewals failed. The following certificates could not be renewed:,
/etc/letsencrypt/live/npm-7/fullchain.pem (failure),
1 renew failure(s), 0 parse failure(s),
Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.,
,
[1/16/2022] [9:55:49 PM] [SSL ] › ℹ info Renewing SSL certs close to expiry...


Habt ihr ideen? Danke