If your include path in php.ini is:
include_path='.:/var/www/html/dbaty'
Then your code is trying to open the include file
'/var/www/html/dbaty/var/www/html/dbaty/php/countdown/countdown4.php'
The '/var/www/html/dbaty' in the include_path is automatically prepended to your include() request unless your include() request begins with a '/'.
The correct include statement should either be:
include('/var/www/html/dbaty/php/countdown/countdown4.php');
or simply:
include('php/countdown/countdown4.php');