Ошибка при установке DLE 10.1

<?php
@error_reporting ( E_ALL ^ E_WARNING ^ E_NOTICE );
@ini_set ( 'display_errors', true );
@ini_set ( 'html_errors', false );
@ini_set ( 'error_reporting', E_ALL ^ E_WARNING ^ E_NOTICE );

define('ROOT_DIR', dirname (__FILE__));

echo "1 - ROOT".ROOT_DIR."<br />";
echo "2 - SERV".$_SERVER['DOCUMENT_ROOT']."<br />";
?>

<?php
@error_reporting ( E_ALL );
@ini_set ( 'display_errors', true );
@ini_set ( 'error_reporting', E_ALL );
 
define('ROOT_DIR', dirname (__FILE__));

require_once(ROOT_DIR.'/language/Russian/adminpanel.lng');
?>

Warning: require_once(/home/u446968984/public_html/language/Russian/adminpanel.lng): failed to open stream: No such file or directory in /home/u446968984/public_html/test.php on line 8 Fatal error: require_once(): Failed opening required '/home/u446968984/public_html/language/Russian/adminpanel.lng' (include_path='.:/usr/lib/php') in /home/u446968984/public_html/test.php on line 8