Loss of stations

I have a squeezebox and a UE smart radio. Over the last few months I am unable to pick up stations that I did before on both.

Some of the messages I get on the UE are:

Error: no items found in playlist
Http://opml.radiotime.com......

Connection reset by remote host https://media-ssl.musicradio.com...

HTTP/1.1 404 Not found https://solid24.streamupsolutions.com/proxy...

This has made both radios almost unusable as all I can really get is BBC stations.