How to delete server account data from Android app

I have set up my Nextcloud server 18.0.4.

It is now accessible under a different subdomain ( instead of

The Nextcloud Android app 3.11.1 now crashes after adding the new account during synchronization.

After setting up the new account (hub. *) The directories of the old (!) account (cloud. *) are displayed, although I had previously deleted this. Even reinstalling the app does not change anything.

Another account on a completely different server can be used normally.

Obviously, when you delete an account and / or the app, the data is not deleted.

Error message:
java.lang.illegalStateException: Couldn’t read row 1091, col 0 from CursorWindow
[…] at android.database […]

Where is this data located and how can I delete it completely?