I'm usingv2.13.5 and once I try to request a new certificate, it fails as Internal Error as we can see in screenshot below.

Diging the logs I was able to find the following:

`2025-11-27 13:45:30,811:INFO:certbot._internal.auth_handler:Challenge failed for domain XXXXXXXXX.XXX
2025-11-27 13:45:30,811:INFO:certbot._internal.auth_handler:http-01 challenge for XXXXXXXXX.XXX
2025-11-27 13:45:30,812:DEBUG:certbot._internal.display.obj:Notifying user:
Certbot failed to authenticate some domains (authenticator: webroot). The Certificate Authority reported these problems:
Domain: XXXXXXXXX.XXX
Type: unauthorized
Detail: 2606:4700:3031::6815:4fb: Invalid response fromhttp://XXXXXXXXX.XXX/.well-known/acme-challenge/LWfTTjOgYmN2t0YMySRAeACf16n7SNn__qKoyTrWFaU: 522

Hint: The Certificate Authority failed to download the temporary challenge files created by Certbot. Ensure that the listed domains serve their content from the provided --webroot-path/-w and that files created there can be downloaded from the >

2025-11-27 13:45:30,813:DEBUG:certbot._internal.error_handler:Encountered exception:
Traceback (most recent call last):
File "/opt/certbot/lib/python3.11/site-packages/certbot/_internal/auth_handler.py", line 104, in handle_authorizations
self._poll_authorizations(authzrs, max_retries, max_time_mins, best_effort)
File "/opt/certbot/lib/python3.11/site-packages/certbot/_internal/auth_handler.py", line 208, in _poll_authorizations
raise errors.AuthorizationError('Some challenges have failed.')
certbot.errors.AuthorizationError: Some challenges have failed.

2025-11-27 13:45:30,813:DEBUG:certbot._internal.error_handler:Calling registered functions
2025-11-27 13:45:30,814:INFO:certbot._internal.auth_handler:Cleaning up challenges
2025-11-27 13:45:30,814:DEBUG:certbot._internal.plugins.webroot:Removing /data/letsencrypt-acme-challenge/.well-known/acme-challenge/LWfTTjOgYmN2t0YMySRAeACf16n7SNn__qKoyTrWFaU
2025-11-27 13:45:30,814:DEBUG:certbot._internal.plugins.webroot:All challenges cleaned up
2025-11-27 13:45:30,815:DEBUG:certbot._internal.log:Exiting abnormally:
Traceback (most recent call last):
File "/opt/certbot/bin/certbot", line 7, in
sys.exit(main())
^^^^^^
File "/opt/certbot/lib/python3.11/site-packages/certbot/main.py", line 18, in main
return internal_main.main(cli_args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/certbot/lib/python3.11/site-packages/certbot/_internal/main.py", line 1850, in main
return config.func(config, plugins)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/certbot/lib/python3.11/site-packages/certbot/_internal/main.py", line 1562, in certonly
lineage = _get_and_save_cert(le_client, config, domains, certname, lineage)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/certbot/lib/python3.11/site-packages/certbot/_internal/main.py", line 141, in _get_and_save_cert
lineage = le_client.obtain_and_enroll_certificate(domains, certname)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/certbot/lib/python3.11/site-packages/certbot/_internal/client.py", line 526, in obtain_and_enroll_certificate
cert, chain, key, _ = self.obtain_certificate(domains)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/certbot/lib/python3.11/site-packages/certbot/_internal/client.py", line 427, in obtain_certificate
orderr = self._get_order_and_authorizations(csr.data, self.config.allow_subset_of_names)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/certbot/lib/python3.11/site-packages/certbot/_internal/client.py", line 505, in _get_order_and_authorizations
authzr = self.auth_handler.handle_authorizations(orderr, self.config, best_effort)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/certbot/lib/python3.11/site-packages/certbot/_internal/auth_handler.py", line 104, in handle_authorizations
self._poll_authorizations(authzrs, max_retries, max_time_mins, best_effort)
File "/opt/certbot/lib/python3.11/site-packages/certbot/_internal/auth_handler.py", line 208, in _poll_authorizations
raise errors.AuthorizationError('Some challenges have failed.')
certbot.errors.AuthorizationError: Some challenges have failed.
2025-11-27 13:45:30,816:ERROR:certbot._internal.log:Some challenges have failed.`

Anyone else facing the same problem?