It would appear that $SESSION['kul'] is an array, so you need to find out what index of that array you need, then access it as something like $SESSION['kul'][0].
This will let you see exactly what info is in the $SESSION array. If it's not what you're expecting, then you have to go look at the code that sets it.
<?php
session_start();
echo "<pre>.print_r($_SESSION, 1)."</pre>";