Exception thrown when trying to add new Translation in PHP Storm

[velletti]

PHP Storm 2020.2.4
XLIFFTranslation version 0.2.0

The XLF and Fluid Template Files are stored in a mounted UNIX container (WSL2 with ubuntu) what may cause this error ??
\wsl$\Ubuntu\home\joerg\web\connect\http\typo3conf\ext\extKey\Resources\Private\Language\locallang.xlf

thanks for your effort.

Details:
Test to translate is marked
Start with Short Cut
the Filebrowser asks for locallang.xlf
i am asked to the translation key an Option preserve space and use inline code
OK ->

gives the exeption

java.lang.Throwable: cannot share data context between Swing events;
initial event count = 16447398; current event count = 16448910

at com.intellij.openapi.diagnostic.Logger.error(Logger.java:143)
at com.intellij.ide.impl.DataManagerImpl$MyDataContext.getData(DataManagerImpl.java:328)
at com.intellij.openapi.actionSystem.DataContext.getData(DataContext.java:40)
at com.intellij.openapi.actionSystem.AnActionEvent.getData(AnActionEvent.java:184)
at de.onigunn.intellij.xliff.action.CreateXLIFFTranslationAction.doAction(CreateXLIFFTranslationAction.java:87)
at de.onigunn.intellij.xliff.action.AbstractXLIFFAction.actionPerformed(AbstractXLIFFAction.java:68)
at com.intellij.openapi.actionSystem.ex.ActionUtil.performActionDumbAware(ActionUtil.java:282)
at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher$1.performAction(IdeKeyEventDispatcher.java:610)
at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.lambda$processAction$3(IdeKeyEventDispatcher.java:670)
at com.intellij.openapi.application.TransactionGuardImpl.performUserActivity(TransactionGuardImpl.java:94)
at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.processAction(IdeKeyEventDispatcher.java:669)
at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.processAction(IdeKeyEventDispatcher.java:620)
at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.processActionOrWaitSecondStroke(IdeKeyEventDispatcher.java:517)
at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.inInitState(IdeKeyEventDispatcher.java:471)
at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.dispatchKeyEvent(IdeKeyEventDispatcher.java:220)
at com.intellij.ide.IdeEventQueue.dispatchKeyEvent(IdeEventQueue.java:890)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:835)
at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$8(IdeEventQueue.java:452)
at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:744)
at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$9(IdeEventQueue.java:451)
at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:802)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:505)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)