As we have inspected your site you have set the Front page displays to Your latest posts so please set the Front page displays to A static page and enable the slider by going to Admin Panel > Appearance > Customize >Featured Slider > Enable Slider On.
Hope this helps.
And please post your query under the respective topic so it would be easier for us to track your issue and help you.
If you have any confusion further, please let us know.
While again after we inspect your site, now slider is appearing and transiting to other slides that way we suppose the slider is working on your site. If still you think problem exists, kindly explain us in detail so that you we could assist you further.
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