Dear JA Team,
Many thanks for your support, finally figured this out.
Now the website pages are using 2 templates actually, one is for all pages built up with modules only, such as the home page etc. The other type of pages are built up with component content, such as the contact page.
Just one question, now the contact form on the contact page is gone and it only shows the title Get in Touch (see the enclosed screenshot). Any idea why? How to configurate and make the form back? Any suggestion will be highly appreciated.
Thanks again.