Customer not able to consume messages on a queue

Using standalone client to consume from remote broker, customer get to a point that it stops consuming message son a queue. Restarting broker and client solves the issue.
Configuration(activemq12.log), client stack traces (client*st*), and server logs(amq*.log) are attached.

The broker throws the following warnings:

2016-06-12 16:54:45,386 | WARN | Q NIO Worker 948 | Service | ivemq.broker.TransportConnection 312 | 121 - org.apache.activemq.activemq-osgi - 5.9.0.redhat-611458 | Async error occurred:
java.lang.IllegalStateException: Cannot remove session that had not been registered: ID:tparhelmhp039.enterprisenet.org-37753-1465684773571-12087:1:578
at org.apache.activemq.broker.TransportConnection.processRemoveSession(TransportConnection.java:726)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611458]
at org.apache.activemq.command.RemoveInfo.visit(RemoveInfo.java:75)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611458]
at org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:334)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611458]
at org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:188)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611458]
at org.apache.activemq.transport.MutexTransport.onCommand(MutexTransport.java:50)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611458]
at org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:125)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611458]
at org.apache.activemq.transport.AbstractInactivityMonitor.onCommand(AbstractInactivityMonitor.java:270)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611458]
at org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611458]
at org.apache.activemq.transport.nio.NIOTransport.serviceRead(NIOTransport.java:138)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611458]
at org.apache.activemq.transport.nio.NIOTransport$1.onSelect(NIOTransport.java:69)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611458]
at org.apache.activemq.transport.nio.SelectorSelection.onSelect(SelectorSelection.java:94)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611458]
at org.apache.activemq.transport.nio.SelectorWorker$1.run(SelectorWorker.java:119)[121:org.apache.activemq.activemq-osgi:5.9.0.redhat-611458]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)[:1.7.0_65]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)[:1.7.0_65]
at java.lang.Thread.run(Thread.java:745)[:1.7.0_65]