I have the same problem from yesterday. I get this message: “Unable to play this station. Its address may have changed, or it may be temporarily unvaliable”. this message appears on both live radio and my live radio. only the MQA Live - Test radio station works for me so quickly.
my system:
core: qnap td-251d - roon core1.8 (884)
roon bridge: rpi 4, raspberry OS + roon bridge 880