OpenCart Community

Google Analytics setup, I get the next error:

Notice: Undefined index: store_id in /customers/c/6/6/malltema.se/httpd.www/admin/controller/analytics/google_analytics.php on line 13Warning: Cannot modify header information - headers already sent by (output started at /customers/c/6/6/malltema.se/httpd.www/admin/controller/startup/error.php:34) in /customers/c/6/6/malltema.se/httpd.www/system/library/response.php
on line 12

Does anyone know what this is wrong and how to fix this?

The file Google analytics.php only have the next content:

<?php
class ControllerAnalyticsGoogleAnalytics extends Controller {
public function index() {
return html_entity_decode($this->config->get('google_analytics_code'), ENT_QUOTES, 'UTF-8');
}
}

Don't know your exact version, because you didn't tell us, but maybe this applies: http://forum.opencart.com/viewtopic.php?f=191&t=160302

Mike