Im trying to retrieve images from my populated database and put them into viewpager2.This works when i insert images in db viewpager2 shows them but when i try to load them when i first enter the activity, the app crashes.

Expected to load images successfully because i already used the same method for loading from db but here when it comes to cursor.moveToFirst() it shows binary code doesnt match the system code.

private void loadDB(List list){
SQLiteDatabase db = imagesDB.getReadableDatabase();
SharedPreferences sharedPreferences = getSharedPreferences(“mesto”,MODE_PRIVATE);
mesto = sharedPreferences.getString(“mesto”,””);

    String tablename = "";

    switch (mesto){
        case "KruskaPab":
            tablename = "KruskaPabImages";
            break;
        case "SalsaBar":
            tablename = "SalsaBarImages";
            break;
        case "Duomo":
            tablename = "DuomoImages";
            break;
        case "BasementBar":
            tablename = "BasementBarImages";
            break;
    }

    Cursor cursor = db.query(tablename,null,null,null,null,null,null);

    if(cursor.moveToFirst()){
        do {
            byte[] imageBytes = cursor.getBlob(cursor.getColumnIndexOrThrow("image"));

            // Convert the byte array to Bitmap
            Bitmap imageBitmap = BitmapFactory.decodeByteArray(imageBytes, 0, imageBytes.length);


             selectedImages.add(imageBitmap);
        }while(cursor.moveToNext());

        viewPageAdapter = new ViewPageAdapter(selectedImages);
        viewPager2.setAdapter(viewPageAdapter);


        cursor.close();
        db.close();
    }
}