EDIT

after a ABCD import has run a ClassCastException happens on processing the result data:

!MESSAGE An internal error occurred during: "Import: Abcd206ImportConfigurator".
!STACK 0
java.lang.ClassCastException: eu.etaxonomy.cdm.io.common.ImportResult cannot be cast to eu.etaxonomy.cdm.api.service.UpdateResult
        at eu.etaxonomy.taxeditor.model.AbstractUtility.updateNameEditors(AbstractUtility.java:803)
        at eu.etaxonomy.taxeditor.model.AbstractUtility$3.run(AbstractUtility.java:645)
        at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

!ENTRY eu.taxeditor 2 0 2019-10-29 15:04:13.510
!MESSAGE Reset usage data

!ENTRY org.eclipse.core.jobs 4 0 2019-10-29 15:04:13.657
!MESSAGE This is an unexpected error.
Please contact EDIT Support (EditSupport@bgbm.org) with the error trace below (click on the 'Details' button).
!STACK 0
java.lang.Exception: login : 
editor version : 5.10.0
server :  ()
schema version : 
os : Linux 5.0.0-32-generic amd64
java : 1.8.0_131
java.lang.ClassCastException: eu.etaxonomy.cdm.io.common.ImportResult cannot be cast to eu.etaxonomy.cdm.api.service.UpdateResult
        at eu.etaxonomy.taxeditor.model.AbstractUtility.updateNameEditors(AbstractUtility.java:803)
        at eu.etaxonomy.taxeditor.model.AbstractUtility$3.run(AbstractUtility.java:645)
        at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

        at eu.etaxonomy.taxeditor.model.MessagingUtils$1.run(MessagingUtils.java:286)
        at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
        at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
        at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4536)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4154)
        at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1121)