Requestor's email: ahector@greenpeace.org
Requestor's Skype: ahtdsa

Page: 
https://www.greenpeace.org/luxembourg/de/aktualitaet/3147/singen-fuer-mehr-klimaschutz/

Description of the issue: It used to work but now no matter how madly we 
click on the arrow, the track won't be played.

Attachments: 
https://drive.google.com/open?id=1kHa3CpFtSXZvQo7kEg5Z2NVtUbroUyG8

NOTE:

The audio plays without problems in the backend