Hello @Hoang Phong,
If you are able to see the changes in the Customizer but not on the page front, it is likely a cache issue. If it is working correctly in the Customizer, it should also be working on the front end.
We recommend clearing the site and browser cache and checking back, or trying to view the site on a different computer with a fresh browser. If the issue persists, please take a complete backup of your site first.
If you could provide us with your website WP-ADMIN login details in the private area, we would be happy to investigate further.
WP admin URL:
WP admin username:
WP admin password:
Best Regards,
8Theme’s Team