A. 1. Check Permissions: Ensure that the app has the necessary permissions to save data. Go to Settings > Privacy > Books and check if Bookjournal.app is allowed to access your data. 2. Restart the App: Close and reopen the app to see if this resolves the saving issue.

B. 3. Clear App Cache: Offload the app to clear any corrupted data that might be preventing it from saving books.