Hello! I wanted to understand a bit more about your issue. You mentioned you're trying to install the PocketBook Reader app on your Android device running version 10, and you see the message "Cannot load database." Is this error appearing during the installation process, or when you try to open the app after installation? Also, have you installed the app before on this device, or is it the first time?

This will help me guide you better. Meanwhile, one common cause of such issues could be a corrupted app database or data folder that the app uses to store its information. A helpful step here is to delete the hidden folder named ".pocketbook" (not "PocketBook") in your Android file manager. This folder holds the app’s database, and deleting it allows the app to recreate a fresh database on launch.

Here is what you can try step-by-step:

1. Open your device’s file manager app.
2. In the internal storage or the area where apps save data, look for a hidden folder named ".pocketbook." You may need to enable viewing hidden files in settings.
3. Delete this ".pocketbook" folder.
4. Restart your device to clear any cached data.
5. Try installing or opening the PocketBook Reader app again.

If the folder is not present or the problem persists after this, please let me know. Then we can check if there are app permission issues or storage access problems causing the database load failure.

Does this sound good? Any additional info you provide will be super helpful!

version. 13. During installation

Thanks for the extra detail! Since you’re encountering the “Cannot load database” error during the installation of PocketBook Reader version 13 on your Android 10 device, this suggests the app is having trouble setting up its internal storage or database files right from the start.

To address this, here are some targeted steps you can try:

1. Clear Previous Partial Installations:
- Go to Settings > Apps > PocketBook Reader (if it's listed).
- Tap Storage and then select Clear data and Clear cache to remove any incomplete database or app data that might be causing conflicts.
- If the app is only partially installed, uninstall it fully first.

2. Check App Permissions:
- On your device, go to Settings > Apps > PocketBook Reader > Permissions.
- Make sure the app has permissions for Storage or Files and media access. The app needs this access to create and load its database.

3. Run Installation from Official Source:
- If you haven’t already, please install the app only through the Google Play Store or PocketBook’s official website to avoid corrupted APK files.

4. Free Storage Space:
- Ensure your device has enough free storage space. Low storage can block the installation and database creation.

5. Reboot and Retry:
- Restart your Android device after clearing data and permissions adjustments, then try installing the app again.

If after these you still face the error, it may be beneficial to test installing an earlier version (if available) to check if version 13 has any compatibility issues with your device and OS. Alternatively, this could be a rare bug in the current version’s installer.

Please try these steps and let me know which ones you’ve done or what happens. We can proceed to explore advanced troubleshooting from there!