添加 ssl 后，网站显示

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想在 production.log 中查找是什么问题，可是立面什么都没有，一下子没有头绪，所以贴出我的 nginx 配置如下，麻烦大家帮我看看是什么问题呢：

user               myusername;
worker_processes   1;
error_log          /var/log/nginx/error.log warn;
pid                /var/run/nginx.pid;

events {
    worker_connections  1024;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    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;

          keepalive_timeout  65;

          #gzip  on; 
      server {
    listen       80 default_server;
        listen       443 ssl;
        server_name  snugnest.com;
        root /mnt/www/snugnest.com/current/public; 

        ssl_certificate   /etc/nginx/sites-enabled/ssl/214551715610547.pem;
        ssl_certificate_key  /etc/nginx/sites-enabled/ssl/214551715610547.key;
        ssl_session_timeout 5m;
        ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
        ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
        ssl_prefer_server_ciphers on;
        location ^~ /assets/ {
        gzip_static on;
        expires max;
        add_header Cache-Control public;
        } 

    try_files $uri/index.html $uri @user1;
    location @user2 {
        proxy_set_header X-Forwarded-Proto https;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_redirect off;
        proxy_pass https://snugnest;
    } 
    error_page 500 502 503 504 /500.html;
    client_max_body_size 1G;
    keepalive_timeout 10;
  }
}