Multi-language

Hi,
I installed polylang and I activated the multilanguages on the events section.

I created a multilanguages category event and I create an event

When I open the events calendar and I tried to filter it works only when I choose English.
When I choose Italian and I filter the calendar disappeared.

This is the url for English
http://www.websisco.com/wordpress?post_type=tribe_events&tribe_events_cat=events&eventDisplay=month&eventDate2014-10/?tribe-bar-search=EVENT

This is the url for Italian
http://www.websisco.com/wordpress?post_type=tribe_events&tribe_events_cat=eventi&eventDisplay=month&eventDate2014-10/?tribe-bar-search=EVENT

Thanks

https://ww.wp.xz.cn/plugins/the-events-calendar/