Index: branches/5.2.x/core/units/helpers/category_helper.php
===================================================================
diff -u -N -r15274 -r15318
--- branches/5.2.x/core/units/helpers/category_helper.php	(.../category_helper.php)	(revision 15274)
+++ branches/5.2.x/core/units/helpers/category_helper.php	(.../category_helper.php)	(revision 15318)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: category_helper.php 15274 2012-04-05 13:15:10Z alex $
+* @version	$Id: category_helper.php 15318 2012-04-25 08:24:13Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -350,7 +350,11 @@
 			$templates = $this->Conn->GetCol($sql, 'CategoryId');
 
 			$base_category = $this->Application->getBaseCategory();
-			$templates[$base_category] .= '/Index'; // "Content" category will act as "Home Page"
+			
+			if ( isset($templates[$base_category]) ) {
+				// "Content" category will act as "Home Page"
+				$templates[$base_category] .= '/Index';
+			}
 
 			foreach ($page_ids as $page_id) {
 				if ( !isset($templates[$page_id]) ) {