Count not working? about pixie HOT 7 CLOSED

$config = array(
    'driver'    => 'mysql', // Db driver
    'host'      => 'localhost',
    'database'  => '****',
    'username'  => '****',
    'password'  => '****',
    'charset'   => 'utf8', // Optional
    'collation' => 'utf8_unicode_ci', // Optional
    'prefix'    => '', // Table prefix, optional
    'options'   => array( // PDO constructor options, optional
        PDO::ATTR_TIMEOUT => 5,
        PDO::ATTR_EMULATE_PREPARES => false,
    ),
);

new \Pixie\Connection('mysql', $config, 'db');
$count = db::table('ia')->count();
echo $count;

public function getRecruitedQuery()
{
    return \QB::table('user')
        ->where('typ', UserType::W)
        ->where('edycja', _EDYCJA)
        ->where('status', WStatus::RECRUITED);
}

$recruitedCount = $wRepository->getRecruitedQuery()->count();

Fatal error: Cannot use object of type stdClass as array in /path/to/vendor/usmanhalalit/pixie/src/Pixie/QueryBuilder/QueryBuilderHandler.php on line 258