following synopsis of Net::Stripe CPAN module hoping to get some 200s from stripe, but get an error instead :(

stripe.pl

#!/usr/bin/env perl

use strict;
use warnings;

use Net::Stripe;

my $stripe     = Net::Stripe->new(api_key => $ENV{STRIPE_SECRET});
my $card_token = 'a token';
my $charge     = $stripe->post_charge(
     amount      => 12500,
     currency    => 'usd',
     card        => $card_token,
     description => 'dolla dolla bill yall',
);

print "Charge was not paid!\n" unless $charge->paid;
my $card = $charge->card;
my $same_charge = $stripe->get_charge(charge_id => $charge->id);


print "paid: $same_charge\n";

terminal

Allens-MacBook-Pro:Hacks coetry$ perl stripe.pl 
Use of uninitialized value $e in die at /Users/coetry/perl5/perlbrew/perls/perl-5.26.0/lib/site_perl/5.26.0/Net/Stripe.pm line 680.
malformed JSON string, neither tag, array, object, number, string or atom, at character offset 0 (before "LWP will support htt...") at /Users/coetry/perl5/perlbrew/perls/perl-5.26.0/lib/site_perl/5.26.0/Net/Stripe.pm line 669.
	...propagated at /Users/coetry/perl5/perlbrew/perls/perl-5.26.0/lib/site_perl/5.26.0/Net/Stripe.pm line 680.