K-9 6.000 crash on Lenovo P11 Andr.11

1

Hello, I just installed K-9 6.000 via fdroid (g. not confirmed/skipped) and can see the list of incoming mails.
But when I try to open it on Andr. 11, the app shortly shows the header and crash.
It does not help to disable animation or to try it in landscape/portrait.
Debugging is activated, but to whom can I send it?
Old github password does not work and e-mail to reset does not work.
Same 6.000 version on Android 7.0 is working well.

2

Can you extract the stack trace from the log and post it here?

It should look something like this:

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.fsck.k9, PID: 7717
    java.lang.NullPointerException
        at com.fsck.k9.fragment.MessageListFragment.doPositiveClick(MessageListFragment.kt:1163)
        at com.fsck.k9.fragment.ConfirmationDialogFragment.onClick(ConfirmationDialogFragment.java:80)
        at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:166)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6494)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)