05:39:00,511 ERROR [tech.ivoice.sip.telephony.IvoiceCall] an exception occured when sending the response SIP/2.0 200 OK
CSeq: 39862774 BYE
Call-ID: 94402edd-769b-123a-97a2-2ae0ee7661e9
From: "" <sip:freeswitch@192.168.0.79:5095>;tag=7ceXSKtpFHa8Q
To: <sip:outgoingSolution?taskId=6115fc66d58416000789e37f&callUuid=b333f6f8-f2a8-4cf2-8d70-22e5af3ad23d&callTaskServiceHost=small-apps12-back&callTaskServicePort=8106&scenarioResultTopic=scenario_result_sdk_v2_app-vis&sleepBeforeScenarioMs=2000@192.168.0.79:5095>;tag=90544787_25330654_d8bfccc0_62564353
Via: SIP/2.0/UDP 92.119.230.62;rport=5060;branch=z9hG4bK7BD0pQXe8Na4g;received=92.119.230.62
Server: Mobicents Sip Servlets 3.0.0-SNAPSHOT
Content-Length: 0

: java.lang.IllegalStateException: an exception occured when sending the response SIP/2.0 200 OK
CSeq: 39862774 BYE
Call-ID: 94402edd-769b-123a-97a2-2ae0ee7661e9
From: "" <sip:freeswitch@192.168.0.79:5095>;tag=7ceXSKtpFHa8Q
To: <sip:outgoingSolution?taskId=6115fc66d58416000789e37f&callUuid=b333f6f8-f2a8-4cf2-8d70-22e5af3ad23d&callTaskServiceHost=small-apps12-back&callTaskServicePort=8106&scenarioResultTopic=scenario_result_sdk_v2_app-vis&sleepBeforeScenarioMs=2000@192.168.0.79:5095>;tag=90544787_25330654_d8bfccc0_62564353
Via: SIP/2.0/UDP 92.119.230.62;rport=5060;branch=z9hG4bK7BD0pQXe8Na4g;received=92.119.230.62
Server: Mobicents Sip Servlets 3.0.0-SNAPSHOT
Content-Length: 0


    at org.mobicents.servlet.sip.message.SipServletResponseImpl.send(SipServletResponseImpl.java:673) [sip-servlets-impl-3.2.0-89.jar:3.2.0-89]
    at org.mobicents.servlet.sip.message.SipServletResponseImpl.send(SipServletResponseImpl.java:473) [sip-servlets-impl-3.2.0-89.jar:3.2.0-89]
    at tech.ivoice.sip.telephony.IvoiceCall.onSipServletRequest(IvoiceCall.java:1957) [classes:]
    at tech.ivoice.sip.telephony.IvoiceCall.onReceive(IvoiceCall.java:665) [classes:]
    at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:159) [akka-actor_2.10-2.1.2.jar:]
    at akka.actor.ActorCell.receiveMessage(ActorCell.scala:425) [akka-actor_2.10-2.1.2.jar:]
    at akka.actor.ActorCell.invoke(ActorCell.scala:386) [akka-actor_2.10-2.1.2.jar:]
    at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:230) [akka-actor_2.10-2.1.2.jar:]
    at akka.dispatch.Mailbox.run(Mailbox.scala:212) [akka-actor_2.10-2.1.2.jar:]
    at akka.dispatch.ForkJoinExecutorConfigurator$MailboxExecutionTask.exec(AbstractDispatcher.scala:506) [akka-actor_2.10-2.1.2.jar:]
    at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:262) [scala-library-2.10.1.jar:]
    at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:975) [scala-library-2.10.1.jar:]
    at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1478) [scala-library-2.10.1.jar:]
    at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104) [scala-library-2.10.1.jar:]
Caused by: java.lang.NullPointerException
    at org.mobicents.servlet.sip.message.SipServletRequestImpl.setRoutingState(SipServletRequestImpl.java:1913) [sip-servlets-impl-3.2.0-89.jar:3.2.0-89]
    at org.mobicents.servlet.sip.message.SipServletResponseImpl.send(SipServletResponseImpl.java:609) [sip-servlets-impl-3.2.0-89.jar:3.2.0-89]
    ... 13 more