[horde] horde-remove-user-data gives an error

[Michael]

Hi,
while trying to delete a user from the Horde database I'm getting a  
Fatal Error.

I'm using the latest versions from pear.

# horde-remove-user-data
[  INFO  ] Horde directory: /var/www/vhosts/horde

Username: michael at filestore.su

Application to remove data from (blank for all apps):

Removing data of user(s):
   michael at filestore.su

Are you sure you want to remove user data?
     (y) Yes
     (n) No

Type your choice [n]: y
PHP Fatal error:  Call to a member function getParam() on a non-object  
in /var/www/vhosts/horde/ingo/config/hooks.php on line 57

====================

Fatal Error:
Call to a member function getParam() on a non-object
In /var/www/vhosts/horde/ingo/config/hooks.php on line 57

1. Horde_ErrorHandler::catchFatalError()

====================


Content of
/var/www/vhosts/horde/ingo/config/hooks.php

public function transport_auth($driver)
{
   switch ($driver) {
     case 'timsieved':
     $ob = $GLOBALS['registry']->call('mail/imapOb');
     return array(
       'euser' => $ob->getParam('username'),
       'password' => $ob->getParam('password'),
       'username' => $GLOBALS['registry']->getAuth(null)
     );
   }return true;
}

Can I fix this somehow?

Thanks,
Michael