Open eCard

When starting open-ecard-app-1.4.5-1.x86_64 in OpenSUSE Leap 15.2, I get a Java exception:
xception in thread "Update-Task" java.lang.IllegalArgumentException: Package type UNKNOWN not supported in update list.
at org.openecard.richclient@1.4.5/org.openecard.richclient.updater.VersionUpdateLoader.loadVersionUpdateList(VersionUpdateLoader.java:129)
at org.openecard.richclient@1.4.5/org.openecard.richclient.updater.VersionUpdateChecker.loadCurrentVersionList(VersionUpdateChecker.java:66)
at org.openecard.richclient@1.4.5/org.openecard.richclient.RichClient$UpdateTask.run(RichClient.java:357)
at java.base/java.util.TimerThread.mainLoop(Timer.java:556)
at java.base/java.util.TimerThread.run(Timer.java:506)
Caused by: java.lang.NullPointerException
at org.openecard.richclient@1.4.5/org.openecard.richclient.updater.VersionUpdateLoader.loadVersionUpdateList(VersionUpdateLoader.java:108)
... 4 more

Later when I try to authenticate with governicus my reader (Reiner SCT) says "Tunnel aktiv", but authentication fails. I see more java exceptions:
Exception in thread "AWT-EventQueue-0" java.lang.IllegalStateException: javax.swing.JPanel[,0,0,0x0,invalid,layout=java.awt.BorderLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=,preferredSize=] is not attached to a horizontal group
at java.desktop/javax.swing.GroupLayout.checkComponents(GroupLayout.java:1090)
at java.desktop/javax.swing.GroupLayout.prepare(GroupLayout.java:1044)
at java.desktop/javax.swing.GroupLayout.layoutContainer(GroupLayout.java:914)
at java.desktop/java.awt.Container.layout(Container.java:1537)
at java.desktop/java.awt.Container.doLayout(Container.java:1526)
at java.desktop/java.awt.Container.validateTree(Container.java:1722)
at java.desktop/java.awt.Container.validateTree(Container.java:1731)
at java.desktop/java.awt.Container.validateTree(Container.java:1731)
at java.desktop/java.awt.Container.validate(Container.java:1657)
at java.desktop/javax.swing.RepaintManager$3.run(RepaintManager.java:745)
at java.desktop/javax.swing.RepaintManager$3.run(RepaintManager.java:743)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/javax.swing.RepaintManager.validateInvalidComponents(RepaintManager.java:742)
at java.desktop/javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1883)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:316)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
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)
Exception in thread "AWT-EventQueue-0" java.lang.IllegalStateException: javax.swing.JPanel[,0,0,0x0,invalid,layout=javax.swing.BoxLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=,preferredSize=] is not attached to a horizontal group
at java.desktop/javax.swing.GroupLayout.checkComponents(GroupLayout.java:1090)
at java.desktop/javax.swing.GroupLayout.prepare(GroupLayout.java:1044)
at java.desktop/javax.swing.GroupLayout.layoutContainer(GroupLayout.java:914)
at java.desktop/java.awt.Container.layout(Container.java:1537)
at java.desktop/java.awt.Container.doLayout(Container.java:1526)
at java.desktop/java.awt.Container.validateTree(Container.java:1722)
at java.desktop/java.awt.Container.validateTree(Container.java:1731)
at java.desktop/java.awt.Container.validateTree(Container.java:1731)
at java.desktop/java.awt.Container.validate(Container.java:1657)
at java.desktop/javax.swing.RepaintManager$3.run(RepaintManager.java:745)
at java.desktop/javax.swing.RepaintManager$3.run(RepaintManager.java:743)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/javax.swing.RepaintManager.validateInvalidComponents(RepaintManager.java:742)
at java.desktop/javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1883)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:316)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
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)
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at java.desktop/javax.swing.GroupLayout$ComponentInfo.setBounds(GroupLayout.java:3660)
at java.desktop/javax.swing.GroupLayout.layoutContainer(GroupLayout.java:932)
at java.desktop/java.awt.Container.layout(Container.java:1537)
at java.desktop/java.awt.Container.doLayout(Container.java:1526)
at java.desktop/java.awt.Container.validateTree(Container.java:1722)
at java.desktop/java.awt.Container.validateTree(Container.java:1731)
at java.desktop/java.awt.Container.validateTree(Container.java:1731)
at java.desktop/java.awt.Container.validate(Container.java:1657)
at java.desktop/javax.swing.RepaintManager$3.run(RepaintManager.java:745)
at java.desktop/javax.swing.RepaintManager$3.run(RepaintManager.java:743)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/javax.swing.RepaintManager.validateInvalidComponents(RepaintManager.java:742)
at java.desktop/javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1883)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:316)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
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)

My java is java-1_8_0-openjdk-1.8.0.252-lp152.1.2.x86_64

In syslog I see messages like these repeating all over:
pcscd⁶⁵⁹⁷: 00000009 eventhandler.c:336:EHStatusHandlerThread() Error communicating to: REINER SCT cyberJack RFID komfort (9876543210) 00 00
pcscd⁶⁵⁹⁷: 00400070 ifdwrapper.c:364:IFDStatusICC() Card not transacted: 612