1.0 has been deprecated as of 11th June 2013. Must use version 1.1.

EpiTwitter.php

@@ -20,7 +20,7 @@ class EpiTwitter extends EpiOAuth
  protected $authenticateUrl= 'https://api.twitter.com/oauth/authenticate';
  protected $apiUrl         = 'http://api.twitter.com';
  protected $userAgent      = 'EpiTwitter (http://github.com/jmathai/twitter-async/tree/)';
  protected $apiVersion     = '1';
  protected $apiVersion     = '1.1';
  protected $isAsynchronous = false;
  /**
   * The Twitter API version 1.0 search URL.