I have to install debian again and again when this problem comes (see screenshot) I have to reinstall all programs. The good thing is with userland i can access my internal memory.
Whenever I install debian session it does not start after a week and an error message appears (see screenshot).
1.Install debian session start with vnc.

Device: Samsung Galaxy Note 4
Android Version: Marshmallow 6.0.1
UserLAnd Version 2.2.0
My device is not rooted
My device is not running custom rom.
translated by Google
Thanks for reposting your issue with additional information. I'll start looking into this today.
I think the new update has solved the problem. I can now start debian session without errors.
Version 2.2.1 or 2.2.2?
Version 2.2.2 fixed my problem.
Most helpful comment
I think the new update has solved the problem. I can now start debian session without errors.