Index: /controller/wpsg_ShopController.class.php
===================================================================
--- /controller/wpsg_ShopController.class.php	(revision 7807)
+++ /controller/wpsg_ShopController.class.php	(revision 7808)
@@ -787,7 +787,7 @@
 
         public function send_headers() {
-
+ 
             $ses = $_SESSION;
-            if (!session_id()) session_start();
+            if (session_status() !== PHP_SESSION_ACTIVE) session_start();
             $_SESSION = $ses;