Cannot Log into Admin After Upgrade to 2.12.4

[paelan8a]

Checklist

• Have you pulled and found the error with jc21/nginx-proxy-manager:latest docker image?
  • Yes
• Are you sure you're not using someone else's docker image?
  • Yes
• Have you searched for similar issues (both open and closed)?
  • Yes (#1769)

Describe the bug
After upgrading from 2.12.3 to 2.12.4, I can no longer log into the admin panel. The login page is displayed, but authentication does not work. The Docker logs show the following and do not proceed any further:

nginx  | ❯ Starting backend ...
nginx  | [7/1/2025] [11:29:07 AM] [Global   ] › ℹ  info      Using Sqlite: /data/database.sqlite
nginx  | [7/1/2025] [11:29:08 AM] [Migrate  ] › ℹ  info      Current database version: none
nginx  | [7/1/2025] [11:29:08 AM] [Global   ] › ⬤  debug     CMD: [ -f '/etc/letsencrypt/credentials/credentials-50' ] || { mkdir -p /etc/letsencrypt/credentials 2> /dev/null; echo '# Cloudflare API token
nginx  | dns_cloudflare_api_token=****' > '/etc/letsencrypt/credentials/credentials-50' && chmod 600 '/etc/letsencrypt/credentials/credentials-50'; }
nginx  | [7/1/2025] [11:29:08 AM] [Global   ] › ⬤  debug     CMD: [ -f '/etc/letsencrypt/credentials/credentials-63' ] || { mkdir -p /etc/letsencrypt/credentials 2> /dev/null; echo '# Cloudflare API token
nginx  | dns_cloudflare_api_token=****' > '/etc/letsencrypt/credentials/credentials-63' && chmod 600 '/etc/letsencrypt/credentials/credentials-63'; }
nginx  | [7/1/2025] [11:29:08 AM] [Certbot  ] › ▶  start     Installing cloudflare...
nginx  | [7/1/2025] [11:29:08 AM] [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
nginx  | [7/1/2025] [11:29:09 AM] [Certbot  ] › ✖  error     ERROR: Cannot install certbot-dns-cloudflare==4.0.0 and cloudflare==4.0.* because these package versions have conflicting dependencies.
nginx  | ERROR: ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/topics/dependency-resolution/#dealing-with-dependency-conflicts
nginx  |
nginx  | [7/1/2025] [11:29:09 AM] [Global   ] › ✖  error     Some plugins failed to install. Please check the logs above CommandError: Some plugins failed to install. Please check the logs above
nginx  |     at /app/lib/certbot.js:39:14
nginx  |     at Immediate.<anonymous> (/app/node_modules/batchflow/lib/batchflow.js:80:9)
nginx  |     at process.processImmediate (node:internal/timers:483:21) {
nginx  |   previous: undefined,
nginx  |   code: 1,
nginx  |   public: false
nginx  | }

Rolling back to 2.12.3 works fine.

Nginx Proxy Manager Version
2.12.4

To Reproduce

1. Update docker image from jc21/nginx-proxy-manager:2.12.3 to 2.12.4
2. Access the admin panel
3. Try to log in
4. Login fails

Expected behavior
Should be able to log in as usual after the upgrade

Screenshots
N/A

Operating System
Ubuntu 24.04.2 LTS
Docker version 26.1.3, build b72abbb

Additional context

• No issue with 2.12.3
• Similar issue: #1769
• No other errors are shown in docker logs
• /api/tokens returns a 502 error.(Thanks for @LukeSearle )

[LukeSearle]

I have the same problem.

The browser console logs indicates getting /api/tokens returns a 502.

[paelan8a]

Oh, I forgot. Thanks!

[spirytuslove]

I'm also having login problems don't know how to fix it

[Robertwhitten87]

Same problem here. Just rolled back to previous version and it's working fine. Logs look exactly the same as above with the added pip reporting conflicting dependencies.

[Joshndroid]

Same issue, just upgraded... cloudflare failing exactly the same

[drbadd]

I just ran into the same issue. Rolled back by adding the :2.12.3 tag to my unraid docker template and it's working again.

[santoshganti]

Preliminary Investigation

The container is performing this installation via pip

. /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

And the error is

ERROR: Cannot install certbot-dns-cloudflare==4.0.0 and cloudflare==4.0.* because these package versions have conflicting dependencies.

The conflict is caused by:
    The user requested cloudflare==4.0.*
    certbot-dns-cloudflare 4.0.0 depends on cloudflare<2.20 and >=2.19

To fix this you could try to:
1. loosen the range of package versions you've specified
2. remove package versions to allow pip to attempt to solve the dependency conflict

ERROR: ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/topics/dependency-resolution/#dealing-with-dependency-conflicts

Changing the version in this command to cloudflare==2.19.* fixes the issues

. /opt/certbot/bin/activate && pip install --no-cache-dir cloudflare==2.19.* acme==$(certbot --version | grep -Eo '[0-9](\.[0-9]+)+') certbot-dns-cloudflare==$(certbot --version | grep -Eo '[0-9](\.[0-9]+)+')  && deactivate

Likely Root cause is whatever script is generating the command for pip install & possibly certbot-dns-cloudflare version 4 is accidentally applied to cloudflare package.

---

MariaDB or Postgres

Rollbacks won't help in some cases because the migration lock happens, but doing the following might be unsafe

UPDATE `migrations_lock` SET
`index` = '1',
`is_locked` = '0'
WHERE `index` = '1';

I used an adminer container to connect to my NPM instance.

Critically, issues persist with both mariadb & postgres as well, sqllite folks maybe just need to fix the pip requirements.

[tom-kst]

I've returned to 2.12.3 at the moment. waiting for fixes

[jjjonesjr33]

Same issue here for me as well.

[AnSch1510]

Same here. Rollback seems to work with no problem

[jicho]

Same issue here with the login, I'm working with a sqllite db.

[hilee0602]

Same issue cannot login. /api/token error..

[Chacsam]

Same issue:
"Bad gateway" error on login and API unavailable