Hi again, waraporn
Thanks for your feedback.
We have got access to your website then select again the Page Menu for you to applying the Main Menu on your page.
- You need to go to your page > scroll down you will see Page Options > Page Header > Select Page Layout as the image: http://imgur.com/54FT1b5
- And Page Options > Menu > Page Menu: Main Menu.
Note: If you want to the main menu which appears on all pages, please follow these steps:
1. Go to your page: Page Options > Page Header >Set Header for Page: Off
2. Go to Rubino> Theme Options > Header > Then configure as you want. See this image: http://imgur.com/u4DBHot
Check it, then feedback to us soon.
Best Regards,
YoloTheme