Hello Ferhat,

Have a nice day!

I checked the site and see the problem on console log as this: https://www.screencast.com/t/PgQT3r1lQRu

It seem a core problem, and it was fixed on latest magento 2 version. Please check and resolve it as ticket: https://github.com/magento/magento2/issues/7115

I think when the js problem was fixed the infinite scroll will work fine.

Hello Ferhat,

Thanks you for your updating!

I see the site link are having problem. It seem was override by some 3th party extension in your site. So the ajax infinite can not parser products list to show on grid.

When access the link: https://mag7.astek.de/rollos.html?p=2&_=1511275565045 it will show json data

when access the link: https://mag7.astek.de/rollos.html?p=2 it show fine (the result our module will use to generate products to grid)

You can see our demo site link is working fine: http://newdemo.demo4coder.com/magento2/women/tops-women.html?_=1511276221184&p=2

Please try to disable some 3th party extension in your site, then we can know the problem is conflict or not.