Google Translation:

Announce update

To resume seeding torrents, please change the old announce to the new announce:
http://seed.icetorrent.org:8880/your_passkey/announce

PS: For a quick replacement, in utorrent select all red torrents (CTRL + click on each) then right click -> Properties and change only the start of the announcement from http://direct.icetorrent.org:8888/ to http://seed.icetorrent.org:8880/

The ICE Torrent Team