让加密 Certbot 不安全

Question

最近，我添加了让我们使用此命令在我的子域中加密 SSL。

sudo certbot --nginx -d sub.xyz.com

我面临的问题是它说证书安装成功但是每当我点击我的浏览器时它显示该站点的连接不安全

版本

• nginx/1.22.0
• Ubuntu 22.10
• certbot 1.29.0

服务器配置

server {
        root /var/www/html/;
        index index.html;
        server_name sub.xyz.com;

    listen [::]:443 ssl ipv6only=on; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/sub.xyz.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/sub.xyz.com/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

}
 server {
    if ($host = sub.xyz.com) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


        listen 80;
        listen [::]:80;
        server_name sub.xyz.com;
    return 404; # managed by Certbot


}

我该如何解决这个问题？有什么我需要更新的吗？

我有另一个子域，它也运行良好，但这个不工作。