Error(?) with language files

[2011-06-11 16:01:12] (ERROR @ /xxx/public_html/core/components/tinymce/lexicon/it/default.inc.php : 12) PHP warning: include_once(/xxx/public_html/core/components/tinymce/lexicon/it/english.inc.php) [<a href='function.include-once'>function.include-once</a>]: failed to open stream: No such file or directory
[2011-06-11 16:01:12] (ERROR @ /xxx/public_html/core/components/tinymce/lexicon/it/default.inc.php : 12) PHP warning: include_once() [<a href='function.include'>function.include</a>]: Failed opening '/xxx/public_html/core/components/tinymce/lexicon/it/english.inc.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php')
[2011-06-11 16:01:12] (ERROR @ /manager/index.php) [OnRichTextEditorInit]

<?php
/*
 * Filename:       assets/plugins/tinymce/lang/italian.inc.php
 * Function:       Italian language file for TinyMCE.  Needs to be translated and re-encoded!
 * Encoding:       ISO-Latin-1
 * Author:         Jeff Whitfield
 * Date:           2007/01/06
 * Version:        2.0.9
 * MODx version:   0.9.5
*/

include_once(dirname(__FILE__).'/english.inc.php'); // fallback for missing defaults or new additions

$_lang['tinymce_editor_theme_title'] = "Theme:";
$_lang['tinymce_editor_theme_message'] = "Here you can select which theme or skin to use with the editor.";
$_lang['tinymce_editor_custom_plugins_title'] = "Custom Plugins:";
$_lang['tinymce_editor_custom_plugins_message'] = "Enter the plugins to use for the 'custom' theme as a comma separated list.";
$_lang['tinymce_editor_custom_buttons_title'] = "Custom Buttons:";
$_lang['tinymce_editor_custom_buttons_message'] = "Enter the buttons to use for the 'custom' theme as a comma separated list for each row. Be sure that each button has the required plugin enabled in the 'Custom Plugins' setting.";
$_lang['tinymce_editor_css_selectors_title'] = "CSS selectors:";
$_lang['tinymce_editor_css_selectors_message'] = "Here you can enter a list of selectors that should be available in the editor. Enter them as follows:<br />'displayName=selectorName;displayName2=selectorName2'<br />For instance, say you have <b>.mono</b> and <b>.smallText</b> selectors in your CSS file, you could add them here as:<br />'Monospaced text=mono;Small text=smallText'<br />Note that the last entry should not have a semi-colon after it.";
$_lang['tinymce_settings'] = "TinyMCE Settings";
$_lang['tinymce_theme_simple'] = "Simple";
$_lang['tinymce_theme_advanced'] = "Advanced";
$_lang['tinymce_theme_editor'] = "Content Editor";
$_lang['tinymce_theme_custom'] = "Custom";
?>