OIDCAuth.pm will not be available in CPAN.This is own perl script to handle the http authentication.I will share some of the perl modules loading from this script.
package  CastIron::OIDCAuth;

  use strict;
  use warnings;
  use lib '/usr/share/perl5';
  use URI;
  use SOAP::Lite;

  use Apache2::Access ();
  use Apache2::RequestUtil ();
  use CastIron::DBIWrap;
  use Digest::SHA1 qw(sha1_base64);
use Cache::Memcached ();

  use Apache2::Const -compile => qw(OK DECLINED HTTP_UNAUTHORIZED);
  use LWP::UserAgent; - This is the line it is throwing exception for us

We have upgraded to perl 5.28.3 and after ugrading we are seeing the above exception.Our Previous version of Perl is 5.12.3 there the we donot see any issues and http request works fine.
I have list of perlmodules installs but those are very huge and could not find how to attach.