protected function loadData()
{
$manager = UpdateManager::instance();
$this->vars['canUpdate'] = BackendAuth::getUser()->hasAccess('system.manage_updates');
$this->vars['updates'] = $manager->check();
$this->vars['warnings'] = $this->getSystemWarnings();
$this->vars['coreBuild'] = Parameter::get('system::core.build');
$this->vars['eventLog'] = EventLog::count();
$this->vars['requestLog'] = RequestLog::count();
$this->vars['appBirthday'] = PluginVersion::orderBy('created_at')->pluck('created_at');
}