The client lacks sufficient authorization

[buke]

My domain is: 2019.honglanjun.com

I ran this command: certbot --nginx

It produced this output:

• The following errors were reported by the server:

  Domain: 2019.honglanjun.com
  Type: unauthorized
  Detail: Invalid response from
  http://2019.honglanjun.com/.well-known/acme-challenge/TI3LSLCRM_jG_J5pHpnETS9tVVHWR1VeORwM-GmfkFU
  [221.122.84.16]: "\n\n <meta
  http-equiv=“Content-Type” content=“text/html; charset=UTF-8”>\n

  无法访问\n</"

  To fix these errors, please make sure that your domain name was
  entered correctly and the DNS A/AAAA record(s) for that domain
  contain(s) the right IP address.

My web server is (include version): CentOS7.3 Nginx

other：
tailf /var/log/nginx/access.log
10.11.1.1 - - [11/Apr/2019:12:19:54 +0800] “GET /.well-known/acme-challenge/TI3LSLCRM_jG_J5pHpnETS9tVVHWR1VeORwM-GmfkFU HTTP/1.1” 200 0 “-” “Mozilla/5.0 (compatible; Let’s Encrypt validation server; +https://www.letsencrypt.org)” “-”

I’ve seen the log of successful verification in the nginx access log（200）
Why is it that you are prompted to be inaccessible?

[mnordhoff]

I get something similar. It has the title "无法访问" and says:

该网站暂时无法访问，有可能是以下原因：

原因一：根据工信部相关法规，您尚未进行备案 ;

原因二：根据工信部相关法规，您当前的接入商不是北京中嘉和信；

原因三：您的网站可能存在不适宜传播的信息，请联系网站管理员。

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