Net::ACME::X::HTTP::Protocol
This exception class means that an error occurred with an HTTP request, and the problem had specifically to do with something that happened on the remote server, not just a general connection problem. For example, this class would be suitable for use when you get a 500 Internal Server Error or a 404 Not Found, but it would not be suitable for use if you get a Connection Refused error when trying to connect.
To install Net::ACME, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Net::ACME
CPAN shell
perl -MCPAN -e shell install Net::ACME
For more information on module installation, please visit the detailed CPAN module installation guide.