Hi @weeix
I can see a JavaScript error on your site, which you can check like this:
https://smartslider.helpscoutdocs.com/article/1935-troubleshooting-with-your-browser#jserror
JavaScript errors stop every other JavaScript code on the page and prevent them from working, so they need to be solved.
The error on your site is:
Uncaught TypeError: Cannot read property 'top' of undefined
and it points to the following inline code:
m = jQuery(".rowApp").offset().top + jQuery(".rowApp").height();
If you’re not sure what creates this code, try running a plugin and theme conflict test:
https://smartslider.helpscoutdocs.com/article/1735-how-to-do-a-plugin-theme-conflict-test
Since you’re using the Pro version, please contact us directly at:
https://smartslider3.com/contact-us/support/
if you need further help with this, or if you’ll have other questions in the future.
As per forum rules, commercial products are not supported in these forums. So we can’t support Pro customers here.