Slider after refresh will not load correctly

Hi, I'm using Joomla 3.9.14 with your extension Slider CK component version 1.0.12 and module version: 1.1.8.

The first time when visiting the site the slider works great, but when reloading the page or changing page on the website the slide is braking. This is very bad in Chrome. I firefox it brakes after multiple reloads or changing pages.

I'm trying to figure out what the problem might be, does anyone knows?

The url is:
servicebox.be/straf/

thanks for the help.

Hi
I have checked your page and there is no Slider CK here
the little slider on the top is not made with it ...
can you please check and give me more details
CEd