Slider does not work

Did you read the documentation?

And I have made the same way and it does not work.
Maybe short and sweet as I have to do it would be great

Please post your website’s url.

https://www.newsgamer.de

I can’t view your website because Maintenance Mode is enabled…

Is disabled

Did you try enabling the slider from WP Administration Panel > Appearance > Theme Options > Slider Tab and clicking on “Show Featured Posts Slider”?

yes is clicked.

Which posts did you set as featured posts?

the post https://www.newsgamer.de/?p=1632

ok it’s you need to take 3 to make it work