Change text "Share" on compact button

First of all, I’ve changed my language to Dutch and I only chose one button (the more / compact button) to show up in a single post, no problems there.

But the very simple fact is that the text on the more button does not change (the text being ‘Share’). I do not understand why and I’ve searched for answers but no luck there.

Please advice, why the text (‘Share’) does not translate, and how can I change this text to something I want!?

Please see the website:
http://chinakorting.nl/aanbiedingen/focalprice-awei-es800m-in-ear/

https://ww.wp.xz.cn/plugins/addthis/