diff --git a/lib/storage.php b/lib/storage.php
index 9e6d63a1..d16ad6af 100755
--- a/lib/storage.php
+++ b/lib/storage.php
@@ -62,7 +62,7 @@ class Storage {
 					->getData()
 				;
 
-		if (!is_array($session)){
+		if (!is_array($session) || !isset($session['es_id'])){
 			return;
 		}