泛域名证书签发失败，腾讯云机器

Please select DNS provider:
dp,cx,ali,cf,aws,linode,he,namesilo,dgon,freedns,gd,namecom and so on.
More: https://oneinstack.com/faq/letsencrypt
Please enter your DNS provider: cx
Syntax: export Key1=Value1 ; export Key2=Value1
Please enter your dnsapi parameters: export CX_Key=xxxxxxxxxxx; export CX_Secret=xxxxxxxxxxxxxxx
[Sun Oct 21 09:55:42 CST 2018] Registering account
[Sun Oct 21 09:55:54 CST 2018] Registered
[Sun Oct 21 09:55:54 CST 2018] ACCOUNHUMBPRINT='GVZxxxxxxxxxxxxxxu3Q7tTi6X3w7x5zI'
[Sun Oct 21 09:55:54 CST 2018] Creating domain key
[Sun Oct 21 09:55:54 CST 2018] The domain key is here: /root/.acme.sh/abc.com/abc.com.key
[Sun Oct 21 09:55:54 CST 2018] Multi domain='DNS:abc.com,DNS:*.abc.com'
[Sun Oct 21 09:55:54 CST 2018] Getting domain auth token for each domain
[Sun Oct 21 09:56:24 CST 2018] Getting webroot for domain='abc.com'
[Sun Oct 21 09:56:24 CST 2018] Getting webroot for domain='*.abc.com'
[Sun Oct 21 09:56:24 CST 2018] Found domain api file: /root/.acme.sh/dnsapi/dns_cx.sh
[Sun Oct 21 09:56:25 CST 2018] Adding record
[Sun Oct 21 09:56:25 CST 2018] Found domain api file: /root/.acme.sh/dnsapi/dns_cx.sh
[Sun Oct 21 09:56:26 CST 2018] Adding record
[Sun Oct 21 09:56:31 CST 2018] Sleep 120 seconds for the txt records to take effect
[Sun Oct 21 09:58:33 CST 2018] Verifying:abc.com
[Sun Oct 21 09:58:41 CST 2018] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 7
[Sun Oct 21 09:58:41 CST 2018] abc.com:Verify error:
[Sun Oct 21 09:58:41 CST 2018] Removing DNS records.
[Sun Oct 21 09:58:47 CST 2018] Deleted record _acme-challenge.abc.com
[Sun Oct 21 09:58:49 CST 2018] Deleted record _acme-challenge.abc.com
[Sun Oct 21 09:58:49 CST 2018] Please add '--debug' or '--log' to check more details.
[Sun Oct 21 09:58:49 CST 2018] See: https://github.com/Neilpang/acme.sh/wiki/How-to-debug-acme.sh
[Sun Oct 21 09:58:52 CST 2018] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 7
Error: Create Let's Encrypt SSL Certificate failed!