NGINX - bad gateway, no errors in logs

I got 2 nginx sites enabled:

server {
  listen 80 default_server;
  listen [::]:80 default_server;
  server_name 202.nl84.seedit4.me;

  location /.well-known {
    alias /srv/.well-known;
    allow all;
    default_type "text/plain";
    autoindex    on;
  }

  location / {
    return 301 https://$host$request_uri;
  }
}

# SSL configuration
server {
  listen 443 ssl default_server;
  listen [::]:443 ssl default_server;
  server_name 202.nl84.seedit4.me;
  ssl_certificate /etc/ssl/certs/ssl-cert-snakeoil.pem;
  ssl_certificate_key /etc/ssl/private/ssl-cert-snakeoil.key;
  include snippets/ssl-params.conf;
  client_max_body_size 60512M;
  server_tokens off;
  root /srv/;



  include /etc/nginx/apps/*.conf;

  location ~ /\.ht {
    deny all;
  }

  location /fancyindex {

  }
}

and

upstream gitlab-workhorse {
    server unix:/var/opt/gitlab/gitlab-workhorse/sockets/socket fail_timeout=0;
}

server {
  access_log /var/log/nginx/gitlab.access.log;
  error_log /var/log/nginx/gitlab.error.log;
  
  listen 443 ssl; 
  listen [::]:443 ssl;
  server_name gitlab.202.nl84.seedit4.me;
  server_tokens off;
  root /opt/gitlab/embedded/service/gitlab-rails/public;
  
  ssl_certificate /etc/ssl/certs/ssl-cert-snakeoil.pem;
  ssl_certificate_key /etc/ssl/private/ssl-cert-snakeoil.key;
  include snippets/ssl-params.conf;
  client_max_body_size 60512M;
  
  location / {
       client_max_body_size 0;
       gzip off;
       proxy_read_timeout      300;
       proxy_connect_timeout   300;
       proxy_redirect          off;
       proxy_http_version 1.1;
       proxy_set_header    Host                $http_host;
       proxy_set_header    X-Real-IP           $remote_addr;
       proxy_set_header    X-Forwarded-Ssl     on;
       proxy_set_header    X-Forwarded-For     $proxy_add_x_forwarded_for;
       proxy_set_header    X-Forwarded-Proto   $scheme;
       proxy_pass http://gitlab-workhorse;
  }
}

when I access second site, gitlab.202.nl84.seedit4.me, I always get "bad gateway"

log files are empty