That section of the log is just a repeating error with no earlier part of the log to give them context..
- Code:
2016-02-04 16:22:15,775 ERROR [DiscoverySSDPMessageListener] Cannot open multicast socket,will try again
java.net.BindException: Address already in use
at java.net.PlainDatagramSocketImpl.bind0(Native Method)
at java.net.AbstractPlainDatagramSocketImpl.bind(AbstractPlainDatagramSocketImpl.java:94)
at java.net.DatagramSocket.bind(DatagramSocket.java:392)
at java.net.MulticastSocket.<init>(MulticastSocket.java:172)
at java.net.MulticastSocket.<init>(MulticastSocket.java:136)
at org.serviio.util.MultiCastUtils.startMultiCastSocketForListening(MultiCastUtils.java:47)
at org.serviio.upnp.discovery.DiscoverySSDPMessageListener.run(DiscoverySSDPMessageListener.java:89)
at java.lang.Thread.run(Thread.java:745)
You need to do a clean start of serviio, and immediately try and play the online sources, then post the whole debug log.