We're sorry, but something went wrong. The issue has been logged for investigation. Please try again later

When deploying a ruby-on-rails application, I get this error. On the VPS server ubuntu 20.4. I installed nginх and passenger, tried adding index.html and everything worked, then when I deployed the rails application, launched migrations and assets, I run nginx, it starts normally, without errors and the inscription "We're sorry, but something went wrong. The issue has been logged for investigation. Please try again later." appears on the screen. I checked the log file "/var/log/nginx/error.log" it's empty. Tell me where can I find the problem?