diff --git a/oc-includes/osclass/classes/datatables/DataTable.php b/oc-includes/osclass/classes/datatables/DataTable.php
index 150bdaca4c..9983cc58da 100644
--- a/oc-includes/osclass/classes/datatables/DataTable.php
+++ b/oc-includes/osclass/classes/datatables/DataTable.php
@@ -121,11 +121,12 @@ public function sortedColumns()
         public function sortedRows()
         {
             $rows = array();
-            $columns = $this->sortedColumns();
-            if(count($this->aRows)===0) {
+            $aRows = (array) $this->aRows;
+            $columns = (array) $this->sortedColumns();
+            if(count($aRows)===0) {
                 return $rows;
             }
-            foreach($this->aRows as $row) {
+            foreach($aRows as $row) {
                 $aux_row = array();
                 foreach($columns as $k => $v) {
                     if(isset($row[$k])) {
@@ -160,4 +161,4 @@ public function rawRows()
 
     }
 
-?>
\ No newline at end of file
+?>