article url to string

@@ -1155,7 +1155,7 @@ class Helpers
      */
     public static function getArticleUrl($url, $id)
     {
-        $jurl = json_decode($url);
+        $jurl = json_decode($url, true);
         if(!empty($jurl) && isset($jurl['url']) && !empty($jurl['url'])) {
             return $jurl['url'];
         } else {