nginx - Nginx proxy_pass make certbot 不起作用

Question

我的 nginx 配置是

server {
    listen   [::]:80;
    root /usr/share/nginx/www/;
    index index.html index.htm;
    server_name op.liu666jiu.me;
    location / {
        proxy_set_header HOST $host;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_pass http://opproxy.liu666jiu.me;
    }
    location ^~ /.well-known/acme-challenge/ {
        default_type "text/plain";
        root     /usr/share/nginx/www/;
    }
    location /doc/ {
        alias /usr/share/doc/;
        autoindex on;
        allow 127.0.0.1;
        allow ::1;
        deny all;
    }
}

但是当我运行“/opt/certbot-auto certonly --webroot -w /usr/share/nginx/www/ -d op.liu666jiu.me”时出现错误，它说

授权程序失败。op.liu666jiu.me (http-01): urn:acme:error:unauthorized :: 客户端缺乏足够的授权 :: http://op.liu666jiu.me/.well-known/acme-challenge/jwqzhx8QXCGjJQeyIBc_UfqXfO18wxjC896Zb5pTe7Y的响应无效：“

它说文件http://op.liu666jiu.me/.well-known/acme-challenge/jwqzhx8QXCGjJQeyIBc_UfqXfO18wxjC896Zb5pTe7Y 404 Not Found

它创建 .well-known 目录，我也尝试

location /.well-known/acme-challenge/ {
    try_files $uri /dev/null =404;
}

也不行，请问是什么原因，谢谢！