Hi there! It sounds like you're having trouble with the iPublishCentral Reader application not responding on your Mac. Let's work together to find a solution.

To start, could you please let me know more about the situation? Specifically:
1. When did this issue first occur?
2. Are you trying to open a specific eBook or just the app in general?
3. Have you tried any troubleshooting steps already, like restarting the app or your computer?

With a bit more information, we can get to the root of the issue. Thanks!

1. more than 6 month 2.App in general

Thank you for the information! Since you're having issues with the iPublishCentral Reader app not responding for over six months on your Mac, let’s try a few steps to hopefully resolve this.

### Step-by-Step Troubleshooting

1. Force Quit the App:
- Click on the Apple logo in the top left corner of your screen.
- Select "Force Quit..."
- Find iPublishCentral Reader in the list and click "Force Quit."

2. Update the App:
- Open the App Store on your Mac.
- Click on "Updates" in the sidebar.
- If there’s an update available for iPublishCentral Reader, install it.

3. Clear Cache Files:
- Navigate to your Library folder by clicking on "Go" in the menu bar, then holding down the "Option" key and selecting "Library."
- Find the "Caches" folder and look for any folders related to iPublishCentral Reader. Move them to the Trash and relaunch the app.

4. Restart Your Mac:
- Sometimes a simple restart can clear out any temporary issues. Go ahead and restart your Mac and then try launching the app again.

5. Check Permissions:
- Go to "System Preferences" > "Security & Privacy" > "Privacy."
- Make sure iPublishCentral Reader has the appropriate permissions for accessing files and folders.

If the app still isn't working after these steps, it may be beneficial to uninstall and then reinstall the application:

### Reinstall the iPublishCentral Reader App
1. Go to the Applications folder in Finder.
2. Locate iPublishCentral Reader and drag it to the Trash.
3. Empty the Trash.
4. Reinstall the app from the App Store here.

Please try these steps, and let me know if it helps resolve the issue! Are you satisfied with the solution I provided, or should we explore other options?