Application getting UT000163: Invalid token XX error.

Issue

When trying to access the application, it is throwing below error:

2019-01-28 13:01:35,757 ERROR [io.undertow.request] (default I/O-4) UT005001: An exception occurred processing the request: java.lang.IllegalArgumentException: UT000163: Invalid token 32
        at io.undertow.server.Connectors.verifyToken(Connectors.java:495)
        at io.undertow.server.protocol.ajp.AjpRequestParser.parse(AjpRequestParser.java:351)
        at io.undertow.server.protocol.ajp.AjpReadListener.handleEvent(AjpReadListener.java:169)
        at io.undertow.server.protocol.ajp.AjpReadListener.handleEvent(AjpReadListener.java:56)
        at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
        at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66)
        at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:89)
        at org.xnio.nio.WorkerThread.run(WorkerThread.java:591)