Server connection closed

[RADIO ON THE BEAT]

Hi, on more than one occasion when switching the broadcast from audio mix to input ! it freezes on air and the message server connection closed output 1 restarting appears. I have to wait a few minutes for it to reconnect, while other times it switches without any problem or message. What's the problem?

 

[RADIO ON THE BEAT]

I checked a similar message but it is not our case, when rb is in audiomix it never stopped, only when switching to input 1 the problem occurs but not often, sometimes.