Spark crashes, Can't find registry file

Within a minute of successfully logging in, Spark crashes.

I get a PID error:

An unexpected error has been detected by Java Runtime Environment:

EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6d890ee7, pid=5992, tid=4356

Java VM: Java HotSpot™ Client VM (1.6.0_01-b06 mixed mode, sharing)

Problematic frame:

V [jvm.dll+0xd0ee7]

and in the Spark Error Log:

java.lang.reflect.InvocationTargetException
Exception on commit = java.io.IOException: Can’t find registry file
Exception on commit = java.io.IOException: Can’t find registry file
java.net.BindException: Cannot assign requested address: Cannot bind
at java.net.PlainDatagramSocketImpl.bind0(Native Method)
at java.net.PlainDatagramSocketImpl.bind(Unknown Source)
at java.net.DatagramSocket.bind(Unknown Source)
at java.net.DatagramSocket.(Unknown Source)
at java.net.DatagramSocket.(Unknown Source)
at de.javawi.jstun.test.demo.ice.Candidate.(Candidate.java:53)
at de.javawi.jstun.test.demo.ice.ICENegociator.gatherCandidateAddresses(ICENegocia tor.java:67)
at org.jivesoftware.smackx.jingle.nat.ICEResolver.initialize(ICEResolver.java:67)
at org.jivesoftware.smackx.jingle.nat.TransportResolver.initializeAndWait(Transpor tResolver.java:384)
at org.jivesoftware.smackx.jingle.nat.ICETransportManager.(ICETransportManag er.java:36)
at org.jivesoftware.sparkplugin.JinglePlugin$1.construct(JinglePlugin.java:101)
at org.jivesoftware.spark.util.SwingWorker$2.run(SwingWorker.java:129)
at java.lang.Thread.run(Unknown Source)