I have reviewed your source code and noticed that the widgets are loading outside the widget area http://screencast.com/t/qm1thES5aCcf. “Popular” and “Recent” widgets also have to load inside the <aside id=”sidebar”> section. Make sure you have placed the “Popular Video” Widget next to the “Video Search” Widget and not placed in any other position in WP admin -> Appearance -> Widgets. Please refer http://screencast.com/t/uwQRAgpjsR. You should have two widgets. One in Available Widget Area and another one in assigned area http://screencast.com/t/9HDdejxQK.
If you have assigned all correctly and still facing the same issue, open \wp-content\plugins\contus-video-gallery\ContusVideoSearch.php and find $div .='</div>'; and remove or hide the code and check.
is not a problem of the widget VideoSearch, because if I change the posizionem only put one first looks good … try to look at now, I put it as the first and second VideoSearch popular video …
you can see here http://www.cinefilos.it/musica/video