As you have not posted logs, all I can offer is that it works for me this morning, so it's not due to a change over at Shoutcast.
Perhaps you could reproduce the problem and then post the logs.
As to being in the wrong forum, AFAIK this forum is fine for this post. NetRadio is a stock plugin provided with GB-PVR, supported by sub. The Plugin & Skin support area is for 3rd-party plugins.
server: NextPVR 5.0.7/Win10 2004/64-bit/AMD A6-7400k/hvr-2250 & hvr-1250/Winegard Flatwave antenna/Schedules Direct main client: NextPVR 5.0.7 Desktop Client; LG 50UH5500 WebOS 3.0 TV