Dear azadyasin,
Thanks for contacting us.
From the provided link we can see that you have some errors in the console of the website. This seems to be a theme or plugin related conflict.
Could you try
1) deactivate all your plugins one by one and check if the problem exists
2) change your theme to one of WordPress default theme for a few seconds only to check if the issue exists
3) turn off the Lightbox functionality of the plugin from the Current Slider options: http://prntscr.com/hxjdrs
We will wait for your observations
Thanks
It has been almost one week, we are marking the ticket as resolved, because it is site specific and we have got no reply. Feel free to reply at any time with more information on this issue or un-resolve the topic if you do return to the ticket with a reply