证书获取失败，返回如下错误信息

IMPORTANT NOTES:
- Congratulations! Your certificate and chain have been saved at:
/etc/letsencrypt/live/sscn/fullchain.pem
Your key file has been saved at:
/etc/letsencrypt/live/sscn/privkey.pem
Your cert will expire on 2018-05-30. To obtain a new or tweaked
version of this certificate in the future, simply run certbot-auto
again. To non-interactively renew *all* of your certificates, run
"certbot-auto renew"
- Your account credentials have been saved in your Certbot
configuration directory at /etc/letsencrypt. You should make a
secure backup of this folder now. This configuration directory will
also contain certificates and private keys obtained by Certbot so
making regular backups of this folder is ideal.
- If you like Certbot, please consider supporting our work by:

Donating to ISRG / Let's Encrypt: https://letsencrypt.org/donate
Donating to EFF: https://eff.org/donate-le

Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for ss.ekaabb.com.cn
Using the webroot path /www/wwwroot/wqfree for all unmatched domains.
Waiting for verification...
Cleaning up challenges

遇到这个提示的时候，你的证书其实已经申请成功了，但是宝塔没有正确识别并回填证书到本机。这个问题我也遇到过，目测是宝塔api的兼容性问题。@河妖

有个变通的办法，就是到“/etc/letsencrypt/live/你的域名/”目录下，找到对应的key和pem，打开并分别复制所有内容，然后进面板→网站设置→SSL选项卡里，将上面拿到的证书信息手动填入并开启SSL即可。

但是这么做就没法使用宝塔的自动续签功能，你每三个月就要重新获取次证书并填入。