Revolution slider is not showing anymore

Hi there,

For no obvious reason, my Revolution Slider isn’t showing anymore on my pages. I think it might be since the new WordPress update, but I’m not sure. Anyone else has this problem and the solution? I tried making a new slider already, also not showing. It’s not working on any of my pages. The ThemeFusion slider seems to be the only working slider, but I’d appreciate the revolution slider to work again to safe myself from making all new sliders. My website is Alepp.nl

Thanks!
Sanne