Sharing doesn't work

The share icons show up on my blogposts, but once you click them, you only gow to one of these social media websites, but it doesn’t show a window to actually share the content….

Anyone know what the problem is or what I did wrong??

http://www.lavieestbelleblog.be/ecologisch/bioconsumenten-hebben-minder-pesticiden-in-hun-lichaam/

https://ww.wp.xz.cn/plugins/simple-share-buttons-adder/