证书安装完后网站显示index，ip地址显示welcome to nginx

[DANVEZ]

大佬，想问个问题。我安装完sspanel，安装大佬的一键脚本，成功拿到证书，结果网站打开是index页面

如上图，ip地址打开发现是nginx的欢迎页面。我想显示自己的网站地址，在网路上搜索很久，没有什么好办法，大佬能回复一下吗啊？感谢！
我是在Digital Ocean上安装的Debian8系统。
/etc/nginx/sites-enabled/default，我编辑的是这个文件

root@debian-s-1vcpu-1gb-nyc3-01:/etc/nginx/sites-enabled# vim default
server {
listen 80 138.197.15.188;
listen [::]:80 2604:a880:800:a1::c3f:4001;
return 301 $scheme://xzwk.gq$request_uri;

    # SSL configuration
    #
    # listen 443 ssl default_server;
    # listen [::]:443 ssl default_server;
    #
    # Note: You should disable gzip for SSL traffic.
    # See: https://bugs.debian.org/773332
    #
    # Read up on ssl_ciphers to ensure a secure configuration.
    # See: https://bugs.debian.org/765782
    #
    # Self signed certs generated by the ssl-cert package
    # Don't use them in a production server!
    #
    # include snippets/snakeoil.conf;

    root /var/www/html;

    # Add index.php to the list if you are using PHP
    index index.html index.htm index.nginx-debian.html;

    server_name _;

    location / {
            # First attempt to serve request as file, then
            # as directory, then fall back to displaying a 404.
            try_files $uri $uri/ =404;
            # Uncomment to enable naxsi on this location
            # include /etc/nginx/naxsi.rules;
    }

[Mit2g]

在你的配置文件后添加

server {
	listen 127.0.0.1:80;

	server_name 你的IP;

	return 301 https://你的域名$request_uri;
}

即可实现ip自动跳转域名