Spark Client Crash

Hi,

We are using Spark client with openfire server and fastpath plugin. Recently we have started seeing crashes in spark. Spark client application just disappear in middle of chat. I dont remember changing anything recently. Please let me know if anybody has seen this before or have any suggestions. Thanks a lot.

Stack trace looks like

Jul 23, 2015 8:03:27 AM org.jivesoftware.spark.util.log.Log error

SEVERE:

No response from server on status set.:

at org.jivesoftware.smackx.workgroup.agent.AgentSession.setStatus(AgentSession.jav a:427)

at org.jivesoftware.fastpath.workspace.Workpane$PresenceChangeListener.presenceCha nged(Workpane.java:853)

at org.jivesoftware.spark.SessionManager.changePresence(SessionManager.java:190)

at org.jivesoftware.sparkimpl.plugin.idle.UserIdlePlugin.setIdle(UserIdlePlugin.ja va:98)

at org.jivesoftware.sparkimpl.plugin.idle.UserIdlePlugin.run(UserIdlePlugin.java:1 57)

at java.util.TimerThread.mainLoop(Unknown Source)

at java.util.TimerThread.run(Unknown Source)

Any suggestion on this please? This is happening very frequently now.