I cannot open my Keepass2Android file.

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• I have read the FAQ section, searched the open issues, and still think this is a new bug.

Describe the bug you encountered:

I've been running Keepass2Android on my Motorola Droid with Android version 11 for years with no problems. Suddenly I am not able to open my database. On the log in screen I get the message, "Could not access source file. No content provider: content://com.google.android.apps.nbu.files.provider/2/4800. Loaded for from internal cache. You can still make changes in the database and synchronize them later." Then after entering my password, I get a second message, "An error occurred: The file signature is invalid. Either the file isn't a keepass data file at all or it is corrupted.".

Any suggestions?

Describe what you expected to happen:

Please provide instructions on how to regain access to my database.

What version of Keepass2Android are you using?

Updated to 1.10-pre to try and fix the issue. Previously 1.09e

Which version of Android are you on?

Android 11

Start by reproducing the reported failure on Android 11 with the content URI shown in the error and compare the two messages: source-file access failure and invalid file signature. The issue mentions no source files, tests, or entry points, so first locate the file-opening and synchronization paths. Done means restoring database access or documenting verified recovery instructions.