Maps Not Found

On tablet qtVlm started to work.
Android 11.
4.9.227-21922983
On phone qtVlm does not work.
Android 11.
4.14.113-22340597

On both no antivirus instaled. On phone turned off Google protect bit it did not help.

OK.
If your phone is ARM 64bits can you install this qtVlm apk that will display a different error message, which I hope will tell us a bit more about the issue:
www.virtual-winds.org/maitai/android-build-release-signed.apk

Instaled but the same rezults and the same error message:
"Saving charts
Zip file / storage/ emulated/documents/qtvlm/qtVlmMaps_v234.zip can't be unzipped (error=0)"

And then next window
"Charts loading
Faild to find maps, qtVlm now will close"
And then app closes.

OK. Last question before next year :
Can you post a screenshot of what you see/have in Documents/qtVlm from android file explorer and/or Windows File explorer ?

This video of whole process.
we.tl/t-mL6UGT1Acd

Screenshot of what is inside directory Documents/qtvlm after instaling