Social Media links aren't working anymore

Hi everybody,
The Social Media links that I have in my footer aren’t working anymore. I have no idea when this happened and why. Can somebody shed some light on this?
I think it has to do with the Fancybox from Nextgen or the Easy Fancybox I am using. But I don’t want to disable those. I am using them alkready for a long time and they function well.
This is the link to my site: https://www.tina-turner.nl/blog/

Johanna