As you can see from the error message, the problem is actually in the multiple-fearured-images plugin which is not tha part of the theme.
If you don’t using it, you can freely disable it, the theme will work perfectly fine without it.
Hi Zex,
thank you for the feedback but i get this information from the Slider developer:
Hi Hynek,
Thanks for the go ahead. Before proceeding with the conflict testing I tried loading slider by placing shortcode in default editor in a new page and the slider seemed to work fine,
This seem to indicate that the conflict occurs when page options (https://i.imgur.com/vFLZG5y.png) are used to add a slider to a page. Since the page options are part of the theme you are currently using, kindly get in touch with the theme support and ask them to have a look at the JS conflict,