null session query output from PDI

User getting null session query executed from PDI tool.
the session id tvgWrPf4oPvD

2019-02-04 09:21:42,987 New I/O worker #39 WARN [org.teiid.PROCESSOR] TEIID40011 Processing exception 'TEIID40042 Invalid Session tvgWrPf4oPvD. Session may have already been terminated.' for session null. Exception type org.teiid.client.security.InvalidSessionException thrown from org.teiid.jboss.TransportService$2.invoke(TransportService.java:239).: org.teiid.client.security.InvalidSessionException: TEIID40042 Invalid Session tvgWrPf4oPvD. Session may have already been terminated.
at org.teiid.jboss.TransportService$2.invoke(TransportService.java:239)
at com.sun.proxy.$Proxy20.processCursorRequest(Unknown Source)
at sun.reflect.GeneratedMethodAccessor152.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.teiid.transport.ServerWorkItem.run(ServerWorkItem.java:87)
at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:284)
at org.teiid.transport.SocketClientInstance.processMessagePacket(SocketClientInstance.java:231)
at org.teiid.transport.SocketClientInstance.receivedMessage(SocketClientInstance.java:217)
at org.teiid.transport.SSLAwareChannelHandler.messageReceived(SSLAwareChannelHandler.java:216)
at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:88)
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at org.jboss.netty.handler.stream.ChunkedWriteHandler.handleUpstream(ChunkedWriteHandler.java:142)
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296)