diff --git a/modules/integration_search/integration_search.model.php b/modules/integration_search/integration_search.model.php
index 3b46977a7..8a054b1f2 100644
--- a/modules/integration_search/integration_search.model.php
+++ b/modules/integration_search/integration_search.model.php
@@ -50,7 +50,7 @@ class integration_searchModel extends module
 		$args->page_count = 10;
 		$args->search_target = $search_target;
 		$args->search_keyword = $search_keyword;
-		$args->sort_index = 'list_order'; 
+		$args->sort_index = 'list_order';
 		$args->order_type = 'asc';
 		$args->statusList = array('PUBLIC');
 		if(!$args->module_srl) unset($args->module_srl);
@@ -74,10 +74,10 @@ class integration_searchModel extends module
 	function getComments($target, $module_srls_list, $search_keyword, $page=1, $list_count = 20)
 	{
 		$args = new stdClass();
-		
+
 		if(is_array($module_srls_list))
 		{
-			if (count($module_srls_list) > 0) $module_srls = implode(',',$module_srls_list); 
+			if (count($module_srls_list) > 0) $module_srls = implode(',',$module_srls_list);
 		}
 		else
 		{
@@ -94,7 +94,7 @@ class integration_searchModel extends module
 		$args->page_count = 10;
 		$args->search_target = 'content';
 		$args->search_keyword = $search_keyword;
-		$args->sort_index = 'list_order'; 
+		$args->sort_index = 'list_order';
 		$args->order_type = 'asc';
 		// Get a list of documents
 		$oCommentModel = &getModel('comment');
@@ -117,8 +117,10 @@ class integration_searchModel extends module
 	 */
 	function getTrackbacks($target, $module_srls_list, $search_target = "title", $search_keyword, $page=1, $list_count = 20)
 	{
+		$oTrackbackModel = &getAdminModel('trackback');
+		if(!$oTrackbackModel) return new Object();
 		$args = new stdClass();
-		
+
 		if(is_array($module_srls_list)) $module_srls = implode(',',$module_srls_list);
 		else $module_srls = $module_srls_list;
 		if($target == 'exclude') $args->exclude_module_srl = $module_srls;
@@ -128,10 +130,9 @@ class integration_searchModel extends module
 		$args->page_count = 10;
 		$args->search_target = $search_target;
 		$args->search_keyword = $search_keyword;
-		$args->sort_index = 'list_order'; 
+		$args->sort_index = 'list_order';
 		$args->order_type = 'asc';
 		// Get a list of documents
-		$oTrackbackModel = &getAdminModel('trackback');
 		$output = $oTrackbackModel->getTotalTrackbackList($args);
 		if(!$output->toBool()|| !$output->data) return $output;
 		return $output;
@@ -152,7 +153,7 @@ class integration_searchModel extends module
 	function _getFiles($target, $module_srls_list, $search_keyword, $page, $list_count, $direct_download = 'Y')
 	{
 		$args = new stdClass();
-		
+
 		if(is_array($module_srls_list)) $module_srls = implode(',',$module_srls_list);
 		else $module_srls = $module_srls_list;
 		if($target == 'exclude') $args->exclude_module_srl = $module_srls;
@@ -162,7 +163,7 @@ class integration_searchModel extends module
 		$args->page_count = 10;
 		$args->search_target = 'filename';
 		$args->search_keyword = $search_keyword;
-		$args->sort_index = 'files.file_srl'; 
+		$args->sort_index = 'files.file_srl';
 		$args->order_type = 'desc';
 		$args->isvalid = 'Y';
 		$args->direct_download = $direct_download=='Y'?'Y':'N';