WP File Manager

Name	Action
..
Api.php	Edit
ApiConnection.php	Edit
Authentication.php	Edit
Base.php	Edit
Card.php	Edit
InvalidRequest.php	Edit
OAuth
Permission.php	Edit
RateLimit.php	Edit
SignatureVerification.php	Edit

Editing: SignatureVerification.php

<?php namespace Stripe\Error; class SignatureVerification extends Base { public function __construct( $message, $sigHeader, $httpBody = null ) { parent::__construct($message, null, $httpBody, null, null); $this->sigHeader = $sigHeader; } public function getSigHeader() { return $this->sigHeader; } }