Issue with topic url

Hi!
The widget works perfectly but each item has wrong url:
http://www.teamworld.it/www.teamworld.it/concerti-festival/concerti-2016-in-italia-biglietti-per-tutti-i-live-piu-attesi-dell-anno/ instead of http://www.teamworld.it/concerti-festival/concerti-2016-in-italia-biglietti-per-tutti-i-live-piu-attesi-dell-anno/

How to fix?
Thanks in advance