Menu Sub item Problem

Hi I am using the template https://wordpress.org/themes/himalayas/
When i created my costume menu when i add a sub item to the menu the names of 2 items becomes together on the menu.
It is printed all together and the links doesnt work so correctly.
I think there is a some sort of a bug of the theme.
If any body can help me out that how i can correct it on the code will be appriciated. I am not sure that i have to correct it in the
navigation.php
header-functions.php (inc/header-functions.php)
Theme Header (header.php)

Please anybody can check and help about it there is also the pictures that you can find.
http://hizliresim.com/Nr6BLP

http://hizliresim.com/dkzdNV

Waiting for your positive news.