Steps to reproduce the issue

Update Joomla! to version 3.7 from 3.6.5

Expected result

Everything is fine

Actual result

1. Fatal error: Call to a member function logAddLogger() on null in ...../libraries/fof/include.php
2. include_once( '/usr/www/users/...../includes/framework.php' ) .../api.php:9
3. require_once( '/usr/www/users/...../libraries/cms.php' ) .../framework.php:23
4. include_once( '/usr/www/users/...../libraries/fof/include.php' )
5. System information (as much as possible)

Additional comments

We have api.php and in 3.6.5 worls perfect, but when update we get this messages.
included files in our api:

define('_JEXEC', 1);
define('JPATH_BASE', realpath('../'));
define('KPATH_ADMIN', JPATH_BASE . '/administrator/components/com_kunena');
ini_set('display_errors', '1');
error_reporting(1);
define('JDEBUG', 1);
include_once JPATH_BASE . '/includes/defines.php';
include_once JPATH_BASE . '/includes/framework.php';
include_once JPATH_BASE . '/libraries/joomla/factory.php';
include_once JPATH_BASE . '/components/com_community/libraries/core.php';
include_once JPATH_BASE . '/components/com_community/libraries/messaging.php';
include_once JPATH_BASE . '/libraries/kunena/bootstrap.php';
include_once JPATH_BASE . '/components/com_kunena/models/category.php';