Certbot runtime error

We are having the same problem here.

Running on Rocky 8.

Hi!

Any hints how to help to debug this issue - as at the moment we are not able to renew mail certs...

Gruesse
Michael

Guys,

Could you please confirm if the issue still exists after applying the 26.3.2 ?

Hi.

I've upgraded.

[zextras@smtp ~]$ zmcontrol -v
Carbonio Release 26.3.2

and the issue is still very much persistent.

Hi!

As asked in https://community.zextras.com/forum/carbonio-news/reporting-issues-on-carbonio-community-edition/ - I reported in addition an issue -> removed link

and yes

$ zmcontrol -v
Carbonio Release 26.3.2

Gruesse
Michael

@hwoffinden did you try to reinstall the package carbonio-certbot ?

dnf reinstall carbonio-certbot

Can you check the contents for cerbot python folder and share the output ? 

dnf install tree
tree /opt/zextras/common/certbot/lib/python3.8/site-packages/certbot/

@mgarbo No I haven't, but thanks for the tip.
I will try it, when I return from my vacation, and let you know.

Hi!

Performed "dnf reinstall carbonio-certbot"...

No change...

# cat log  
2026-04-18 22:57:17,550:DEBUG:certbot._internal.main:certbot version: 2.11.1
2026-04-18 22:57:17,550:DEBUG:certbot._internal.main:Location of certbot entry point: /opt/zextras/common/certbot/bin/carbonio-certbot
2026-04-18 22:57:17,550:DEBUG:certbot._internal.main:Arguments: []
2026-04-18 22:57:17,550:DEBUG:certbot._internal.main:Discovered plugins: PluginsRegistry()
2026-04-18 22:57:17,555:DEBUG:certbot._internal.log:Exiting abnormally:
Traceback (most recent call last):
 File "/opt/zextras/common/certbot/bin/carbonio-certbot", line 8, in <module>
   sys.exit(main())
 File "/opt/zextras/common/certbot/lib/python3.8/site-packages/certbot/main.py", line 19, in main
   return internal_main.main(cli_args)
 File "/opt/zextras/common/certbot/lib/python3.8/site-packages/certbot/_internal/main.py", line 1877, in main
   config = cli.prepare_and_parse_args(plugins, cli_args)
 File "/opt/zextras/common/certbot/lib/python3.8/site-packages/certbot/_internal/cli/__init__.py", line 370, in prepare_and_parse_args
   helpful.add(
 File "/opt/zextras/common/certbot/lib/python3.8/site-packages/certbot/_internal/cli/helpful.py", line 418, in add
   self.actions.append(self._add(topics, *args, **kwargs))
 File "/opt/zextras/common/certbot/lib/python3.8/site-packages/certbot/_internal/cli/helpful.py", line 441, in _add
   if not isinstance(topic, bool) and self.visible_topics[topic]:
KeyError: 'manual'
2026-04-18 22:57:17,555:ERROR:certbot._internal.log:An unexpected error occurred:
2026-04-18 22:57:17,555:ERROR:certbot._internal.log:KeyError: 'manual'

Output of tree:
# tree /opt/zextras/common/certbot/lib/python3.8/site-packages/certbot/
/opt/zextras/common/certbot/lib/python3.8/site-packages/certbot/
├── achallenges.py
├── compat
│   ├── filesystem.py
│   ├── __init__.py
│   ├── misc.py
│   ├── os.py
│   ├── _path.py
│   └── __pycache__
├── configuration.py
├── crypto_util.py
├── display
│   ├── __init__.py
│   ├── ops.py
│   ├── __pycache__
│   └── util.py
├── errors.py
├── __init__.py
├── interfaces.py
├── _internal
│   ├── account.py
│   ├── auth_handler.py
│   ├── cert_manager.py
│   ├── cli
│   │   ├── cli_constants.py
│   │   ├── cli_utils.py
│   │   ├── group_adder.py
│   │   ├── helpful.py
│   │   ├── __init__.py
│   │   ├── paths_parser.py
│   │   ├── plugins_parsing.py
│   │   ├── __pycache__
│   │   ├── subparsers.py
│   │   └── verb_help.py
│   ├── client.py
│   ├── constants.py
│   ├── display
│   │   ├── completer.py
│   │   ├── dummy_readline.py
│   │   ├── __init__.py
│   │   ├── obj.py
│   │   ├── __pycache__
│   │   └── util.py
│   ├── eff.py
│   ├── error_handler.py
│   ├── hooks.py
│   ├── __init__.py
│   ├── lock.py
│   ├── log.py
│   ├── main.py
│   ├── plugins
│   │   ├── disco.py
│   │   ├── __init__.py
│   │   ├── manual.py
│   │   ├── null.py
│   │   ├── __pycache__
│   │   ├── selection.py
│   │   ├── standalone.py
│   │   └── webroot.py
│   ├── __pycache__
│   ├── renewal.py
│   ├── snap_config.py
│   ├── storage.py
│   ├── tests
│   │   ├── account_test.py
│   │   ├── auth_handler_test.py
│   │   ├── cert_manager_test.py
│   │   ├── client_test.py
│   │   ├── cli_test.py
│   │   ├── compat
│   │   │   ├── filesystem_test.py
│   │   │   ├── __init__.py
│   │   │   ├── misc_test.py
│   │   │   ├── os_test.py
│   │   │   └── __pycache__
│   │   ├── configuration_test.py
│   │   ├── crypto_util_test.py
│   │   ├── display
│   │   │   ├── completer_test.py
│   │   │   ├── __init__.py
│   │   │   ├── internal_util_test.py
│   │   │   ├── obj_test.py
│   │   │   ├── ops_test.py
│   │   │   ├── __pycache__
│   │   │   └── util_test.py
│   │   ├── eff_test.py
│   │   ├── error_handler_test.py
│   │   ├── errors_test.py
│   │   ├── helpful_test.py
│   │   ├── hook_test.py
│   │   ├── __init__.py
│   │   ├── lock_test.py
│   │   ├── log_test.py
│   │   ├── main_test.py
│   │   ├── ocsp_test.py
│   │   ├── plugins
│   │   │   ├── common_test.py
│   │   │   ├── disco_test.py
│   │   │   ├── dns_common_test.py
│   │   │   ├── enhancements_test.py
│   │   │   ├── __init__.py
│   │   │   ├── manual_test.py
│   │   │   ├── null_test.py
│   │   │   ├── __pycache__
│   │   │   ├── selection_test.py
│   │   │   ├── standalone_test.py
│   │   │   ├── storage_test.py
│   │   │   ├── util_test.py
│   │   │   └── webroot_test.py
│   │   ├── __pycache__
│   │   ├── renewal_test.py
│   │   ├── renewupdater_test.py
│   │   ├── reverter_test.py
│   │   ├── storage_test.py
│   │   └── util_test.py
│   └── updater.py
├── main.py
├── ocsp.py
├── plugins
│   ├── common.py
│   ├── dns_common_lexicon.py
│   ├── dns_common.py
│   ├── dns_test_common_lexicon.py
│   ├── dns_test_common.py
│   ├── enhancements.py
│   ├── __init__.py
│   ├── __pycache__
│   ├── storage.py
│   └── util.py
├── __pycache__
├── py.typed
├── reverter.py
├── ssl-dhparams.pem
├── tests
│   ├── acme_util.py
│   ├── __init__.py
│   ├── __pycache__
│   ├── testdata
│   │   ├── cert_2048.pem
│   │   ├── cert_512_bad.pem
│   │   ├── cert_512.pem
│   │   ├── cert-5sans_512.pem
│   │   ├── cert_fullchain_2048.pem
│   │   ├── cert_intermediate_1.pem
│   │   ├── cert_intermediate_2.pem
│   │   ├── cert_leaf.pem
│   │   ├── cert-nosans_nistp256.pem
│   │   ├── cert-san_512.pem
│   │   ├── cli.ini
│   │   ├── csr_512.der
│   │   ├── csr_512.pem
│   │   ├── csr-6sans_512.conf
│   │   ├── csr-6sans_512.pem
│   │   ├── csr-nonames_512.pem
│   │   ├── csr-nosans_512.conf
│   │   ├── csr-nosans_512.pem
│   │   ├── csr-nosans_nistp256.pem
│   │   ├── csr-san_512.pem
│   │   ├── ec_prime256v1_key.pem
│   │   ├── ec_secp384r1_key.pem
│   │   ├── ec_secp521r1_key.pem
│   │   ├── nistp256_key.pem
│   │   ├── ocsp_certificate.pem
│   │   ├── ocsp_issuer_certificate.pem
│   │   ├── ocsp_responder_certificate.pem
│   │   ├── os-release
│   │   ├── README
│   │   ├── rsa2048_key.pem
│   │   ├── rsa256_key.pem
│   │   ├── rsa512_key.pem
│   │   ├── sample-archive
│   │   │   ├── cert1.pem
│   │   │   ├── chain1.pem
│   │   │   ├── fullchain1.pem
│   │   │   └── privkey1.pem
│   │   ├── sample-archive-ec
│   │   │   ├── cert1.pem
│   │   │   ├── chain1.pem
│   │   │   ├── fullchain1.pem
│   │   │   └── privkey1.pem
│   │   ├── sample-renewal-ancient.conf
│   │   ├── sample-renewal.conf
│   │   ├── sample-renewal-deprecated-option.conf
│   │   ├── sample-renewal-ec.conf
│   │   └── webrootconftest.ini
│   └── util.py
└── util.py

28 directories, 158 files

Gruesse
Michael

Hi.

I also performed "dnf reinstall carbonio-certbot"...

No change...

Hi!

Any news? Any ideas how to debug, troubleshoot?

Gruesse
Michael

Hi!

I would also like to have some kind of feedback. Tomorrow it's 2 months since I made this initial post, and so far nothing!

Regards,
Henrik