Nginx Open Socket Left Connection Error Django

when I first published my Django project, the index page was showing, but when I clicked anywhere, it did not redirect to the page. The error I'm getting against the request is Server Error(500)

I reset the system, I restarted nginxi, this time the index page started not to come.

nginx error.log is error

2094#2094: *19 open socket #10 left in connection 4

I couldn't find many resources about this problem on the internet.Can anyone help me?

    /etc/nginx/sites-available/lordplus      GNU nano 4.8                                                                                         /etc/nginx/sites-available/lordplusserver {    listen 80;    server_name www.domain.com;    root /var/www/lordplus; # Projenin kök dizini    location /static/ {    }    location /media/ {    }    location / {        include proxy_params;        proxy_pass http://unix:/var/www/lordplus/lordplus.sock;    }}

And here Gunicorn Service

/etc/systemd/system/gunicorn.service  GNU nano 4.8                                                                                        /etc/systemd/system/gunicorn.service[Unit]Description=gunicorn daemonAfter=network.target[Service]User=runadmingenGroup=www-dataWorkingDirectory=/var/www/lordplusExecStart=/var/www/lordplus/venv/bin/gunicorn --access-logfile - --workers 3 --bind unix:/var/www/lordplus/lordplus.sock lordplus.wsgi:application[Install]WantedBy=multi-user.target