证书申请失败，修复失败。

[zyaowei]

您好。
我的ipv6的vps，安装后证书申请失败，用另外的二级域名进行修复，还是失败。
卸载重装也不行。多次尝试一直不成功。
信息如下，请给与建议。
debian10-ipv6（无ipv4地址）

选择操作 [输入任意值退出]: 2
解析到本 VPS 的域名: f.suibianba02.cf
域名 f.suibianba02.cf 解析正确, 即将开始修复证书
[Wed Dec 23 22:34:07 CST 2020] e.suibianba02.cf is removed, the key and cert files are in /root/.acme.sh/e.suibianba02.cf_ecc
[Wed Dec 23 22:34:07 CST 2020] You can remove them by yourself.
Re-setting v2ray
Re-setting caddy
Re-setting trojan-go
Re-issuing certificates for f.suibianba02.cf
Issuing certificate
[Wed Dec 23 22:34:21 CST 2020] Using CA: https://acme-v02.api.letsencrypt.org/directory
[Wed Dec 23 22:34:21 CST 2020] Standalone mode.
[Wed Dec 23 22:34:22 CST 2020] Creating domain key
[Wed Dec 23 22:34:22 CST 2020] The domain key is here: /root/.acme.sh/f.suibianba02.cf_ecc/f.suibianba02.cf.key
[Wed Dec 23 22:34:22 CST 2020] Single domain='f.suibianba02.cf'
[Wed Dec 23 22:34:23 CST 2020] Getting domain auth token for each domain
[Wed Dec 23 22:34:34 CST 2020] Getting webroot for domain='f.suibianba02.cf'
[Wed Dec 23 22:34:35 CST 2020] Verifying: f.suibianba02.cf
[Wed Dec 23 22:34:35 CST 2020] Standalone mode server
[Wed Dec 23 22:34:42 CST 2020] f.suibianba02.cf:Verify error:Fetching http://f.suibianba02.cf/.well-known/acme-challenge/aD8caY6QDC--vNozjJ_hZPiVdfSf-KUhWlqxnZYHXKY: Connection refused
[Wed Dec 23 22:34:42 CST 2020] Please add '--debug' or '--log' to check more details.
[Wed Dec 23 22:34:43 CST 2020] See: https://github.com/acmesh-official/acme.sh/wiki/How-to-debug-acme.sh
Issuing certificate
[Wed Dec 23 22:34:50 CST 2020] Using CA: https://acme-v02.api.letsencrypt.org/directory
[Wed Dec 23 22:34:51 CST 2020] Single domain='f.suibianba02.cf'
[Wed Dec 23 22:34:51 CST 2020] Getting domain auth token for each domain
[Wed Dec 23 22:34:58 CST 2020] Getting webroot for domain='f.suibianba02.cf'
[Wed Dec 23 22:34:59 CST 2020] Verifying: f.suibianba02.cf
[Wed Dec 23 22:35:05 CST 2020] f.suibianba02.cf:Verify error:Fetching http://f.suibianba02.cf/.well-known/acme-challenge/LNaL-DPNfpTKXACZXm0I3mUsuSjEBMXPk1CloWCHs-M: Connection refused
[Wed Dec 23 22:35:05 CST 2020] Please add '--debug' or '--log' to check more details.
[Wed Dec 23 22:35:05 CST 2020] See: https://github.com/acmesh-official/acme.sh/wiki/How-to-debug-acme.sh
Installing certificate
[Wed Dec 23 22:35:08 CST 2020] Installing key to:/etc/ssl/v2ray/key.pem
[Wed Dec 23 22:35:09 CST 2020] Installing full chain to:/etc/ssl/v2ray/fullchain.pem
cat: /root/.acme.sh/f.suibianba02.cf_ecc/fullchain.cer: No such file or directory
证书修复完成