Plugin stop working

Hi!

I was using your plugin on my website http://www.foxos.pl since today, when I saw it’s stop working. I don’t know why, I try to reinstal, but it do nothing. Can you help me?

Here is url to site when I try to use it: http://foxos.pl/863/piec-przydatnych-aplikacji-dla-twojego-telefonu-z-firefox-os/

Thank you for reply
Marcin Lisowski

http://wordpress.org/plugins/foxy-board/