Problemas Kraken

Bom dia , pessoal verifiquei hoje, que apos algum tempo utilizando o Kraken integrado ao Openfire, sendo utilizado no Spark … apresenta a seguinte mensagem de erro, e não envia mensagens … sendo necessario fazer logout no usuario e logar novamente.

java.net.SocketException: Software caused connection abort: socket write error
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(Unknown Source)
at java.net.SocketOutputStream.write(Unknown Source)
at java.io.ByteArrayOutputStream.writeTo(Unknown Source)
at net.sf.jml.net.Session.sendMessage(Session.java:511)
at net.sf.jml.net.Session.access$1300(Session.java:30)
at net.sf.jml.net.Session$MsgSender.run(Session.java:476)
at java.lang.Thread.run(Unknown Source)
java.net.SocketException: Software caused connection abort: socket write error
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(Unknown Source)
at java.net.SocketOutputStream.write(Unknown Source)
at java.io.ByteArrayOutputStream.writeTo(Unknown Source)
at net.sf.jml.net.Session.sendMessage(Session.java:511)
at net.sf.jml.net.Session.access$1300(Session.java:30)
at net.sf.jml.net.Session$MsgSender.run(Session.java:476)
at java.lang.Thread.run(Unknown Source)

Alguem poderia me ajudar, com este erro ?

Obrigado, desde já!