Kleo Child Theme customized one (Working fine with Old Theme) not working with Updated One!

We have customized the theme using child theme concept. Already installed some plugins and using them for the required purposes. But when the theme is updated the child theme stopped working – i mean its not working properly in the front-end.

Could you please check the issues and get back to us soon!

Here we are providing the demo site admin details and the child theme we have customized!

Thanks!