Hello, @Lashamika,
I have just checked your site now and it is working perfectly fine for me in incognito mode, the slider is working fine, I have captured the video for you as well, please watch it here: https://www.veed.io/view/3edd2d8c-4453-4ee4-abe8-5e8195c5f344?sharingWidget=true so please try to clear the cache of your site and browser and check back or check on any other fresh new browser.
Regards 8Themes Team.