falha no PDI 8.3

[theoked]

org.pentaho.di.core.exception.KettlePluginException:
Unexpected error loading class with name: org.openbi.kettle.plugins.tableauDataExtract.TDEOutputDialog

Unable to find class loader for plugin: TDEOutputPlugin/Tableau Data Extract Output{class org.pentaho.di.core.plugins.StepPluginType}

at org.pentaho.di.core.plugins.PluginRegistry.getClass(PluginRegistry.java:864)
at org.pentaho.di.ui.spoon.delegates.SpoonStepsDelegate.getStepDialog(SpoonStepsDelegate.java:258)
at org.pentaho.di.ui.spoon.Spoon.getStepEntryDialog(Spoon.java:8630)
at org.pentaho.di.ui.spoon.delegates.SpoonStepsDelegate.editStep(SpoonStepsDelegate.java:116)
at org.pentaho.di.ui.spoon.Spoon.editStep(Spoon.java:8814)
at org.pentaho.di.ui.spoon.trans.TransGraph.editStep(TransGraph.java:3287)
at org.pentaho.di.ui.spoon.trans.TransGraph.mouseDoubleClick(TransGraph.java:785)
at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Display.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
at org.pentaho.di.ui.spoon.Spoon.readAndDispatch(Spoon.java:1384)
at org.pentaho.di.ui.spoon.Spoon.waitForDispose(Spoon.java:7949)
at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:9331)
at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:710)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.pentaho.commons.launcher.Launcher.main(Launcher.java:92)

Caused by: org.pentaho.di.core.exception.KettlePluginException:
Unable to find class loader for plugin: TDEOutputPlugin/Tableau Data Extract Output{class org.pentaho.di.core.plugins.StepPluginType}

at org.pentaho.di.core.plugins.PluginRegistry.getClass(PluginRegistry.java:858)
... 21 more

Alguém pode me ajudar?