Hi
I checked the code in the component and found that you or your developer customized it and added the code which require users to login before purchasing.
Please open the file components/com_dms/controller.php, find the code below and remove it. After that, it will work as expected .
Code:
$user =& JFactory::getUser();
if ($user->guest)
{
$msg = "Please login";
$rurl = base64_encode($_SERVER['REQUEST_URI']);
$url = JRoute::_('index.php?option=com_users&view=login&return='.$rurl);
$mainframe->redirect($url, $msg);
}
Regards,
Tuan