new dns helper class

core/Http/Response.php

@@ -168,7 +168,7 @@ class Response extends SymfonyRespose
         $menu = $mainMenu->getMenu();
 
         $addon = ServiceLocator::call(Config::class);
-        $params = $this->getWhmcsParamsByKeys(['domain', 'userid', 'serverhostname', 'client']);
+        $params = $this->getWhmcsParamsByKeys(['domain', 'userid', 'serverhostname', 'templatevars']);
 
         $vars = [
             'assetsURL'                => BuildUrl::getAssetsURL(),