Horde logout error

Error: This request cannot be completed because the link you followed or the form you submitted was only valid for minutes. Please try again now.

Solution:

Edit /webmail/horde/lib/Horde.php

if (($_SESSION['horde_form_secrets'][$token] + $GLOBALS['conf']['urls']['token_lifetime'] * 60) < time()) {
            return PEAR::raiseError(sprintf(_("This request cannot be completed because the link you followed or the form you submitted was only valid for %s minutes. Please try again now."), $GLOBALS['conf']['urls']['token_lifetime']));
        }



Replace it with:

if ((($_SESSION['horde_form_secrets'][$token] + $GLOBALS['conf']['urls']['token_lifetime']) * 60) < time()) {
            return PEAR::raiseError(sprintf(_("This request cannot be completed because the link you followed or the form you submitted was only valid for %s minutes. Please try again now."), $GLOBALS['conf']['urls']['token_lifetime']));