Email button not working

Hi,

I have installed the plugin on a WordPress site on http://www.slankenlijn.nl/berichten/afvallen/wil-jij-afvallen-probeer-het-weekdagdieet-2/

All share buttons are working correctly, except for the email button. When I click on it, it doesn’t open the email window.

Do I have to put in my e-mail address somewhere? Or do I have to change some other setting in WordPress?

Would love to hear from you.

https://wordpress.org/plugins/addthis/