Pls see the following config file, pls assist further...
# For more information on configuration, see:
#   * Official English Documentation: 
http://nginx.org/en/docs/
#   * Official Russian Documentation: 
http://nginx.org/ru/docs/
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
# Load dynamic modules. See /usr/share/doc/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;
events {
    worker_connections 1024;
}
http {
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
    access_log  /var/log/nginx/access.log  main;
    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 4096;
    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;
    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See 
http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;
#server {
        listen       80;
        listen       [::]:80;
        server_name  _;
        root         /usr/share/nginx/html;
        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;
        error_page 404 /404.html;
        location = /404.html {
        }
        error_page 500 502 503 504 /50x.html;
        location = /50x.html {
        }
    }
# Settings for a TLS enabled server.
server {
        listen 443 ssl;
        ssl_certificate /etc/pki/tls/BAHL/rdamedia.crt;
        ssl_certificate_key /etc/pki/tls/BAHL/rdamedia.key;
        server_name wcs.rdamedia.bankalhabib.com;
        server_tokens off;
        client_max_body_size 500m;
        proxy_read_timeout 10m;
        include /etc/nginx/default.d/*.conf;
        location / {
        }
        location /wss {
            if ($http_connection !~* "upgrade") {
                return 403;
            }
            if ($http_upgrade !~* "websocket") {
                return 403;
            }
            proxy_set_header Host $host;
            proxy_pass http://192.168.0.152:8081;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_read_timeout 86400;
        }
        error_page 404 /404.html;
            location = /40x.html {
        }
        error_page 500 502 503 504 /50x.html;
            location = /50x.html {
        }
      
    }