3340167 - Adapter Engine Status: EOIO Sequences (Error while loading Adapter Engine Status: EOIO Sequences)

When accessing the Adapter Engine monitor through: http://[host]:[port]/pimon-> Monitoring-> Adapter Engine-> Engine Status, the following error occurs:

Error while loading Adapter Engine Status: EOIO Sequences

 A similar error can be found in the default traces:

com.sap.tc.webdynpro.services.exceptions.ApplicationFaultException: wdDoInit: exception thrown in this user coding area
at com.sap.tc.webdynpro.progmodel.generation.DelegatingComponent.doInit(DelegatingComponent.java:164)
at com.sap.tc.webdynpro.progmodel.controller.Controller.initController(Controller.java:227)

...

Caused by: java.lang.NullPointerException: while trying to invoke the method com.sap.tc.xi.itsam.co.ui.engstats.wd.wd.comp.eoiomonitor.wdp.IPublicEOIOMonitor$IEOIOMessagesNode.size() of a null object loaded from a local variable at slot 1
at com.sap.tc.xi.itsam.co.ui.engstats.wd.wd.comp.eoiomonitor.EOIOMonitor.populateEOIOMessageList(EOIOMonitor.java:357)
at com.sap.tc.xi.itsam.co.ui.engstats.wd.wd.comp.eoiomonitor.EOIOMonitor.wdDoInit(EOIOMonitor.java:150)

Engine Status, EOIO Sequences, Holding, stuck messages, com.sap.tc.xi.itsam.co.ui.engstats.wd.wd.comp.eoiomonitor.wdp.IPublicEOIOMonitor$IEOIOMessagesNode.size(), Error while loading Adapter Engine Status: EOIO Sequences , KBA , BC-NWA-XPI , Process Integration (PI) Monitoring , Problem