Index: branches/5.2.x/core/install/english.lang
===================================================================
diff -u -N -r16569 -r16584
--- branches/5.2.x/core/install/english.lang	(.../english.lang)	(revision 16569)
+++ branches/5.2.x/core/install/english.lang	(.../english.lang)	(revision 16584)
@@ -272,6 +272,7 @@
 			<PHRASE Label="la_error_InvalidFileFormat" Module="Core" Type="1">SW52YWxpZCBGaWxlIEZvcm1hdA==</PHRASE>
 			<PHRASE Label="la_error_InvalidItemPrefix" Module="Core" Type="1">VW5pdCBjb25maWcgcHJlZml4IG5vdCBmb3VuZA==</PHRASE>
 			<PHRASE Label="la_error_invalidoption" Module="Core" Type="1">aW52YWxpZCBvcHRpb24=</PHRASE>
+			<PHRASE Label="la_error_InvalidUsername" Module="Core" Type="1">VGhlIHVzZXJuYW1lIGNhbiBjb250YWluIG9ubHk6IGxldHRlcnMsIG51bWJlcnMsIHVuZGVyc2NvcmVzLCBkYXNoZXMgYW5kIGRvdHM=</PHRASE>
 			<PHRASE Label="la_error_LoginFailed" Module="Core" Type="1">TG9naW4gRmFpbGVk</PHRASE>
 			<PHRASE Label="la_error_MessagesListReceivingFailed" Module="Core" Type="1">UmVjZWl2aW5nIGxpc3Qgb2YgbWVzc2FnZXMgZnJvbSB0aGUgU2VydmVyIGhhcyBmYWlsZWQ=</PHRASE>
 			<PHRASE Label="la_error_move_subcategory" Module="Core" Type="1">RXJyb3IgbW92aW5nIHN1YnNlY3Rpb24=</PHRASE>
Index: branches/5.2.x/core/units/users/users_config.php
===================================================================
diff -u -N -r16388 -r16584
--- branches/5.2.x/core/units/users/users_config.php	(.../users_config.php)	(revision 16388)
+++ branches/5.2.x/core/units/users/users_config.php	(.../users_config.php)	(revision 16584)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: users_config.php 16388 2016-08-11 08:16:43Z alex $
+* @version	$Id: users_config.php 16584 2017-07-18 11:36:52Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -342,7 +342,7 @@
 					'max_len' => 255,
 					'formatter' => 'kFormatter', 'regexp' => '/^[A-Z\d_\-\.]+$/i',
 					'error_msgs' => Array (
-						'unique' => '!lu_user_already_exist!', 'invalid_format' => '!la_error_InvalidLogin!', 'banned' => '!la_error_UserBanned!'
+						'unique' => '!lu_user_already_exist!', 'invalid_format' => '!la_error_InvalidUsername!', 'banned' => '!la_error_UserBanned!'
 					),
 					'unique' => Array (), 'default' => '',
 				),