Problem Nginx Proxy Manager and TP-LINK Omada Controller

Hi everyone i hope you can help me to fix my problem.

I have difficult to configure Nginx Proxy for access Omada Controller, this is the current configuration:

But if i go to omada.mydomain.tld i have a blank page.
I see a configuration on reddit could help but i don't now ho to apply, this is the configuration:

server {
listen 80;
server_name omada.example.com;

return 301 https://$http_host$request_uri;
}

server {
listen 443 ssl;
server_name omada.example.com;

set $backend https://127.0.0.1:8043;

location / {
expires off;
proxy_http_version 1.1;
proxy_set_header Host $http_host:8043;
proxy_pass $backend;

proxy_redirect https://$http_host:8043/login https://$http_host/login;
proxy_buffering off;

proxy_set_header        X-Real-IP                 $remote_addr;
proxy_set_header        X-Forwarded-For           $proxy_add_x_forwarded_for;
proxy_set_header        Cookie                    $http_cookie;
proxy_set_header        X-Forwarded-Proto         $scheme;

proxy_set_header        Upgrade                   $http_upgrade;
proxy_set_header        Connection                "upgrade";

}

}

The issue provides no repository file or test to target. Start by reproducing the blank page with the shown Nginx Proxy Manager settings and compare its available proxy-host configuration with the supplied Nginx directives. Done should mean the required Omada access configuration is identified and the blank-page behavior is reproducibly resolved or documented.