[horde] Problème with Kronolith and Free/Busy

[Amaury TANQUEREL]

Hi
 
When i want to view the disponibility of participants whn i create a reunion i have a error message with Free Busy
 
In my config.php in kronolith i have configured
 
// Addressbooks to search for free/busy URLs.
$_prefs['search_abook'] = array(
    // If you want the localsql address book to be the default, use:
    'value' => 'a:1:{i:0;s:8:"localsql";}',
//    'value' => 'a:0:{}',
    'locked' => false,
    'shared' => false,
    'type' => 'implicit',
    'desc' => _("Choose the address books to search for free/busy URLs:")
);

But it doesn't work.
 
Help me please
 
Thanks