Ajax links doesn't work with Jetpack plugin

Hi,

I am quite a newbie in this. I made a website: http://www.atmicasa.nl. I like the feature, ajax links, showing only a few of the post. However after I installed the plugin Jetpack, and I press the button ‘load more post’ I get a white page with a smiley 🙂

Does anyone know how to make it work? If not possible, do you know a similar plugin to get more or less the same features?

Heard Alexander is the guru here. Hope he will be reading my issue!

Thanks! best regards Bianca