use subscriptionid as code

serviceAddon.php

@@ -179,7 +179,6 @@ function serviceAddon_AdminServicesTabFields($params) {
 
 function serviceAddon_ClientArea($params) {
     return array(
-        'tabOverviewReplacementTemplate' => 'templates/clientarea',
         'vars' => [
             'subscriptionid' => $params['model']->subscriptionid
         ],