Resolved Lets Encrypt not issuing certificate [due to recent NSS update on operating system]

[hamza-24]

Server operating system version

centOS 7

Plesk version and microupdate number

18.0.55 Update #2

getting this error when trying to install certificate
Failed to connect to the Let's Encrypt server

Boulder: The Let's Encrypt CA

.

Please try again later or report the issue to support.

Details
Could not obtain directory: cURL error 77: (see libcurl - Error Codes) for https://acme-v02.api.letsencrypt.org/directory

 

[Maarten]

The error is the result of a recent NSS package update.

Have a look at the solution in this article:

https://support.plesk.com/hc/en-us/articles/18463826337815