Nginx Proxy Manager v2.12.4 fails to start after Certbot plugin error

[gabriellxxix]

The issue seems related to a broken Certbot environment under /opt/certbot, where plugin installations fail due to version mismatches. The internal logic tries to install plugins like certbot-dns-cloudflare or certbot-dns-netcup, but fails with the following errors:

pkg_resources.VersionConflict: (certbot 2.1.0 (/opt/certbot/lib/python3.11/site-packages), Requirement.parse('certbot<2.8.0,>=2.7.4'))
ERROR: Could not find a version that satisfies the requirement acme==
ERROR: No matching distribution found for acme==
AttributeError: module 'josepy' has no attribute 'ComparableX509'. Did you mean: 'ComparableKey'?
Some plugins failed to install. Please check the logs above

Because of this, NPM won't even finish initializing, making the entire system unavailable.

[tremor021]

@MickLesk maybe remove NPM from website until refactor is done?

[MickLesk]

does it work for you?

[gabriellxxix]

Other people are experiencing the same error?

I simply rolled back to a backup from the previous day.

I'm not sure if a clean installation from scratch is also affected — if it is, there's no reason to keep using that install script. Although it asks if you want to install an older version, the script should also handle issues like automatically starting the update process every time you run it, without checking if an update is actually needed. That behavior could be considered a bug.

[tremor021]

@gabriellxxix I just installed NPM v2.12.4 and installed all certbot plugins without a issue:

ovh failed because No matching distribution found for acme== which can be ignored

[gabriellxxix]

Hi, thanks for sharing your experience.

I'm also running into the acme== issue on NPM v2.12.4, but in my case, the error actually prevents Nginx Proxy Manager from starting at all — the service fails to initialize completely.

[tremor021]

Please provide some logs, it starts here just fine. Certbot plugins have no impact if app itself will start or not. They are called when needed, not on app startup

[MickLesk]

work fine here too with default install, but i hate npm 😄

[gabriellxxix]

After restarting the LXC container, this error pattern starts repeating continuously in the logs. During this time, the process uses a high percentage of CPU and it's not possible to access the web UI.

This issue does not occur if I don't restart the LXC container — in that case, everything seems to work correctly.

Jul 01 19:37:17 nginxproxymanager node[129]: ERROR: Could not find a version that satisfies the requirement acme== (from versions: [...])
Jul 01 19:37:17 nginxproxymanager node[129]: ERROR: No matching distribution found for acme==
Jul 01 19:37:17 nginxproxymanager node[129]: [7/1/2025] [7:37:17 PM] [Global   ] › ✖  error     Some plugins failed to install. Please check the logs above CommandError: Some plugins failed to install. Please check the logs above
Jul 01 19:37:17 nginxproxymanager node[129]:     at /app/lib/certbot.js:39:14
Jul 01 19:37:17 nginxproxymanager node[129]:     at Immediate.<anonymous> (/app/node_modules/.pnpm/[email protected]/node_modules/batchflow/lib/batchflow.js:80:9)
Jul 01 19:37:17 nginxproxymanager node[129]:     at processImmediate (node:internal/timers:466:21) {
Jul 01 19:37:17 nginxproxymanager node[129]:   previous: undefined,
Jul 01 19:37:17 nginxproxymanager node[129]:   code: 1,
Jul 01 19:37:17 nginxproxymanager node[129]:   public: false
Jul 01 19:37:17 nginxproxymanager node[129]: }
Jul 01 19:37:18 nginxproxymanager node[129]: [Migrate  ] › ℹ  info      Current database version: none
Jul 01 19:37:18 nginxproxymanager node[129]: [Global   ] › ⬤  debug     CMD: [ -f '/etc/letsencrypt/credentials/credentials-REDACTED' ] || { mkdir -p /etc/letsencrypt/credentials 2> /dev/null; echo '# Cloudflare API token
Jul 01 19:37:18 nginxproxymanager node[129]: dns_cloudflare_api_token=REDACTED' > '/etc/letsencrypt/credentials/credentials-REDACTED'; chmod 600 '/etc/letsencrypt/credentials/credentials-REDACTED'; }
Jul 01 19:37:18 nginxproxymanager node[129]: [Certbot  ] › ▶  start     Installing cloudflare...
Jul 01 19:37:18 nginxproxymanager node[129]: [Global   ] › ⬤  debug     CMD: . /opt/certbot/bin/activate && pip install --no-cache-dir cloudflare==4.0.* acme==$(certbot --version | grep -Eo '[0-9](\.[0-9]+)+') certbot-dns-cloudflare==$(certbot --version | grep -Eo '[0-9](\.[0-9]+)+')  && deactivate
Jul 01 19:37:21 nginxproxymanager node[129]: [Certbot  ] › ✖  error     An unexpected error occurred:
Jul 01 19:37:21 nginxproxymanager node[129]: pkg_resources.VersionConflict: (certbot 2.1.0 (/opt/certbot/lib/python3.11/site-packages), Requirement.parse('certbot<2.8.0,>=2.7.4'))
Jul 01 19:37:21 nginxproxymanager node[129]: Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /tmp/certbot-log-REDACTED/log or re-run Certbot with -v for more details.

[cdusseau]

Had this issue with a docker install on 2.12.4, reverted to 2.12.3 and it went away. Leaving it hardset to that until resolved.

[Brainfish69]

Known issue with 2.12.4

Workaround in this thread and reverting to 2.12.3 fixes for some

NginxProxyManager/nginx-proxy-manager#4606