NGINX add-on and Internal IP

Hi guys. How can I run NGINX Home Assistant SSL proxy not only on name.domain.org, but also on my local IP adress http://192.168.1.15:8123? I need both of them. When I try to type https://192.168.1.15:8123 on iOS HA Companion App, it shows the cert error. I tried to follow these steps: NGINX Configuration. However, I can’t find nginx config file on my system. Even add-on or share folders are empty. I am running HassOS on RPi 4. Thank you in advance for some suggestions or tips.

Finally I have the solution! Firstly, you have to uninstall NGINX Home Assistant SSL proxy and install Nginx Proxy Manager. After that follow this instructions: Nginx Proxy Manager en Home Assistant (Hassio)