An error occurs when restarting nginx, who knows what's wrong?

Question

Nginx

Hello, good afternoon, I tried to set up nginx on a virtual server, I tried, but I couldn’t, I looked for similar errors, but I didn’t find it.
When restarting, it gives an error:
(venv) [email protected]:~/DB_PDD$ sudo service nginx restart
Job for nginx.service failed because the control process exited with error code. See "systemctl status nginx.service" and "journalctl -xe" for details.
Thanks in advance.

Answer 1

See "systemctl status nginx.service" and "journalctl -xe" for details.

It would be nice to look here first, and then go ask questions

Answer 2

nginx -t

Answer 3

You already have another service on port 8000.