OFAPI + CodeIgniter

[eluser]PvOostrom[/eluser]
While using OFAPI(http://code.google.com/p/ofapi/) with phpBB3 together with CodeIgniter, I ran into some annoying problems and errors.

Here is what I did:

Code:

$this->load->library('xmlrpc');
          $this->xmlrpc->set_debug(TRUE);
          $this->xmlrpc->server(site_url('forums/ofapi/ofapi.php'), 80);
          $this->xmlrpc->method('logging.login');
          $loginInfo = array('Cayren','xxxxxxx');
          $request = $loginInfo;
          //$request = array('auth' => $loginInfo);
          $this->xmlrpc->request($request);
          
          if ( ! $this->xmlrpc->send_request())
          {
             $data["response"] = $this->xmlrpc->display_error();
          }
          else
          {
             $this->xmlrpc->method('members.getMembersList');
             $request = array('auth' => $loginInfo);
             $this->xmlrpc->request($request);
             if ( ! $this->xmlrpc->send_request())
             {
                $data["response"] = $this->xmlrpc->display_error();
             }
             else
             {
                $data["response"] = $this->xmlrpc->display_response();
             }
          }

and the error I get:

Code:

Severity: Notice

Message: Undefined offset: 0

Filename: libraries/Xmlrpc.php

Line Number: 627

Fatal error: Call to a member function serialize_class() on a non-object in /usr/home/mmo/framework/libraries/Xmlrpc.php on line 646

Any idea what the problem could be?