Форум Open Server Panel

Проблема в следующем, есть такой код при переходе по ссылке выдаёт ошибку

[12-May-2017 10:42:57 Europe/Moscow] PHP Warning:  require_once(E:\OpenServer\domains\localhost/includes/config.php): failed to open stream: No such file or directory in E:\OpenServer\domains\localhost\bootstrap.php on line 26
[12-May-2017 10:42:57 Europe/Moscow] PHP Fatal error:  require_once(): Failed opening required 'E:\OpenServer\domains\localhost/includes/config.php' (include_path='.;e:/openserver/modules/php/PHP-5.6;e:/openserver/modules/php/PHP-5.6/PEAR/pear') in E:\OpenServer\domains\localhost\bootstrap.php on line 26

// set absolut & base path
define('ABSPATH',dirname(__FILE__).'/');
define('BASEPATH',dirname($_SERVER['PHP_SELF']));


// check the config file
if(!file_exists(ABSPATH.'includes/config.php')) {
    /* the config file doesn't exist -> start the installer */
    header('Location: ./install');
}


// get system configurations
require_once(ABSPATH.'includes/config.php');

Вестимо

/* the config file doesn't exist -> start the installer */

не ведёт к появлению файла

ABSPATH.'includes/config.php'