GStreamer/Mopidy suddenly stops every few hours – End of stream on public radio?

I’m listening to a public 24/7 radio station via a continuous MP3 stream using Mopidy (which is depending on gstreamer). Mopidy however randomly stops playback every few hours and doesn’t resume, as you can see below. I’d like to understand what’s going on here. IMO it’s an issue with gstreamer rather than Mopidy. Or is radio station’s server to blame (does it provide a stream with hiccups, which Mopidy/gstreamer just can’t handle?).

If I select the station right after it stops, Mopidy plays again (after the buffer is filled again).

Stream URL is https://dispatcher.rndfnk.com/hr/hr1/live/mp3/high