Most of the scanner feeds came from BroadCasterfy.com. In there wisdom they decided that they only wanted people to listen to the feeds that people like you and me provide if the could put advertising in the feed application.
Even though we provided a link back to them, it was not good enough, so they blocked us.
You can still use the scanner plug-in but you will have to get your feeds somewhere else.
If enough CAD operators want to provide feeds to me to share. I will put up a ShotCast server to do it.