If your paid version of Book Crawler has reverted to a trial version, preventing you from adding books, you can follow these steps to resolve the issue:

1. Check for App Updates:
Ensure that you are using the latest version of Book Crawler. Go to the App Store, search for Book Crawler, and see if an update is available. Install any updates if found.

2. Sign Out and Back In:
Sometimes, simply signing out of your Apple ID and signing back in can refresh your account's status:
- Open Settings.
- Tap on your name at the top.
- Scroll down and select Sign Out.
- After signing out, sign back in with your Apple ID.

3. Re-enter Your Purchase Information:
If you have made a purchase through iTunes, you may need to re-enter your account information:
- Open Book Crawler.
- Look for an option in the settings or account section to Restore Purchases. This will check your account for any active purchases and reinstate them.

4. Delete and Reinstall the App:
If the issue persists, consider deleting and reinstalling Book Crawler:
- Press and hold the Book Crawler app icon until it starts to jiggle.
- Tap the X to delete it.
- Reinstall it from the App Store.

5. Contact Support:
If you are still facing problems, reach out to Book Crawler support for assistance:
- Visit the FAQs page for troubleshooting guidance and potential fixes.

6. Database Utilities:
If the app advises loading an alternate version of your database, follow the instructions provided to ensure that your data is correctly loaded:
- Refer to your app's database utilities section in the support documentation for specifics.

7. Check for Known Issues:
Online forums may highlight this issue being experienced by other users. Visit this forum or other relevant discussion threads to see if a community or developer response offers a direct solution.

By following these steps, you should be able to restore your paid version of Book Crawler and regain the ability to add books to your collection. - learn more - learn more