Shoutcast listings broken?

[HarderHarder]

For some reason our radio streams have disappeared from the Shoutcast listings. We are still on-air with approx 70-80 listeners (according to our admin page) but checking the logfile we are getting the following error message:

[yp_tch] error resolving yp.shoutcast.com

Is this a fault at our end? Or somewhere else?

Any ideas please!

Thanks in advance

Adam