Modular Menu in Non-modular Page

Hi there,
I’m just a noob in Grav. I’ve a problem when I moved my project to live server.
In my computer, modular menus are working fine. The problem is when I go to non-modular page for example “Blog” Page, I can’t go back to modular pages.

Actually, even I’m visiting Blog page, when I click “Home”, it should go to my home page.
in home page, I clicked contact, it goes
in blog page, I clicked contact, it goes nowhere and just showing in URL
I’m using Hola theme, and I hosted my project in DigitalOcean, Ubuntu 14.04, Apache.

Thanks in advanced …