Woocommerce API problem

Notice: Undefined property: Automattic\WooCommerce\Client::$version in /data01/virt61235/domeenid/www.webme.ee/projects/madis/vollerv2/wp-content/themes/enfold/config-woocommerce/config.php on line 53

I noticed that when running latest Enfold (4.3.1) and using https://github.com/woocommerce/wc-api-php then error above occures when trying to run this:

require __DIR__ . ‘/vendor/autoload.php’;

use Automattic\WooCommerce\Client;

$woocommerce = new Client(
‘http://example.com’,
‘ck_XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX’,
‘cs_XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX’,
[
‘wp_api’ => true,
‘version’ => ‘wc/v2’,
]
);