NGINX proxy manager internal error!

hi all,

i believe that with home assistant there always a “Thank you” that must be said, really all the efforts from eveyone is something incredible.

Error: Command failed: /usr/bin/certbot certonly --non-interactive --config "/etc/letsencrypt.ini" --cert-name "npm-5" --agree-tos --email "[email protected]" --preferred-challenges "dns,http" --domains "xxxxx.duckdns.org" 
Saving debug log to /data/logs/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Performing the following challenges:
http-01 challenge for xxxxx.duckdns.org
Using the webroot path /data/letsencrypt-acme-challenge for all unmatched domains.
Waiting for verification...
Challenge failed for domain xxxxx.duckdns.org
http-01 challenge for xxxxx.duckdns.org
Cleaning up challenges
Some challenges have failed.

    at ChildProcess.exithandler (child_process.js:308:12)
    at ChildProcess.emit (events.js:315:20)
    at maybeClose (internal/child_process.js:1048:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:288:5)

i hope someone can help or point me in the right direction to solving this.