Hello, @Darul Muqarrabin Malaysia,
Actually, the issue is that you did not assign that particular tag to the product. Please edit the product and assign the Product tags and save settings then check back to your site after clearing the browser cache.
See images for a better reference here: https://ibb.co/C5qt6z8 and https://ibb.co/bL1xC45
Regards 8Themes Team.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.