Sometimes the Radio takes time to load. If it does not load, give it a few minutes and click "refresh" on your browser.
If the Radio is extremely choppy and stops every 5 seconds, try listen to this Radio at different time.
Not all Radio Stations function for 24 hours everyday. If you can't listen to any Radio, try to listen at diffrent time as the Radio Station may stop during midnight according to its own country time zone.