On the login page, the code for including other files is set to virtual:
<?php virtual('/Connections/test.php'); ?>
this should be require once instead:
<?php require_once('Connections/test.php'); ?>
This is caused by a setting in your site definition.
I nthe site definition, the setting for "Create Links relative to" is set to Site. this will cause DW to use the virtual function on include files. change that to Document so that DW will use the require_once function instead.
you will either need to change that setting in the site definition, then delete the security assist pages and recreate them, or go through each page and change the include file lines to use require once.