Fsinternetradio binding does not refresh

I am running openHAB 2.30 and see when I update my items file:
2018-01-17 22:54:15.797 [INFO ] [el.core.internal.ModelRepositoryImpl] - Refreshing model 'xyz.items’
2018-01-17 22:54:15.881 [WARN ] [radio.handler.FSInternetRadioHandler] - Ignoring unknown command: REFRESH
2018-01-17 22:54:15.882 [WARN ] [radio.handler.FSInternetRadioHandler] - Ignoring unknown command: REFRESH
I did not change items of the fsinternetradio. Is this a bug, or can it be my fault ?