trobles with 2.5 version

Hello.
I use your plugin on my website (link). Plugin ceased to function properly after the update (I have updated wordpress 3.8 and contus video gallery 2.5). The downloaded videos are not displayed in the dashboard. The path to the categories “http://video.vmarkse.ru/category//” and returns a “page not found”

http://wordpress.org/plugins/contus-video-gallery/