Hi there! I see your PCH app keeps showing the "Under Maintenance" message despite reinstalling it several times. That definitely sounds like a persistent issue.

To help you better, may I ask:
- Are you using the PCH app specifically on your Macintosh running OS X 10.15?
- Is your internet connection stable when you try to open the app?
- Did the app ever work normally on this device, or has this issue been from the start?

Meanwhile, here’s a quick step-by-step we can try on your Mac:

1. Check your internet connection: Try loading a few websites in your browser to be sure your connection is stable.
2. Restart your Mac: Sometimes, a fresh reboot can clear temporary glitches in app communication.
3. Clear any app cache if possible: On macOS, sometimes residual files from apps can cause issues. Since the PCH app is showing this maintenance message even after reinstall, fully removing related files may help:
- After uninstalling the app, open Finder, press Command+Shift+G, and enter ~/Library/Application Support/ then look for any folder related to PCH and delete it.
- Also check ~/Library/Caches/ for any PCH-related cache folders and delete them.
- Then reinstall the app.
4. Check for any app updates: Although you reinstalled, make sure you downloaded the latest version supported on macOS 10.15.
5. Verify the official PCH status: Sometimes the app may be genuinely under maintenance on their servers. There have been reports of prolonged maintenance periods causing issues1 7.

If all that checks out and the app is still stuck, it's very likely a backend server issue with PCH that users can't fix on their own, especially if they've acknowledged the maintenance publicly.

Could you please try these steps and let me know if anything changes? If the problem persists, I can help you draft a message to PCH support for further investigation.

Are you satisfied with the solution I provided so far?