Failed: assets 404 not found - zammad loading page

Infos:

• Used Zammad version: latest
• Used Zammad installation type: package
• Operating system: Ubuntu
• Browser + version: Chrome

Expected behavior:

• It was expected that the initial setup screen for Zammad would appear.

Actual behavior:

• Only the logo with the word “loading” is shown.

Steps to reproduce the behavior:

• Opening the URL in any browser and right-clicking > Inspect to check for error logs. The error logs when inspecting the page show a 404 error for two assets: application-d58... and application-367....
  I have already run the command RAILS_ENV=production bundle exec rake assets:precompile on the server, but nothing worked.

The logs

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Logs in /var/log/nginx/zammad.error.log

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