Hi Mizar,
try disabling the debug mode as this notice is breaking the page if debug mode is enabled.
if there are still issues, check the log in /var/logs folder.
Also maybe(not sure) this one could help you : https://stackoverflow.com/questions/17488656/zend-server-windows-authorization-header-is-not-passed-to-php-script/17489025#17489025
Kind regards, Leo