Welcome to our forum.
I just logged in your admin, i can see you are still using the older version of the plugin, we have change recently latest version. i have updated the latest version on your site. i didn’t delete the older version that you used, in case you made any customize the plugin core files. please don’t get confused by seeing two versions of the same plugin installed in your site.
So we will try to solve the issue first and then will move to the latest version.
Please send me the page url of the slider where the issue is happening. and little more explain what are facing.