Hi! I see you’re experiencing a black screen issue on the Calendar screen of your Nolio app. To help you better, could you please tell me if this happened suddenly or after an update? Also, is the app completely black, or do you see any loading symbols or partial content?

In the meantime, let's try some steps that commonly resolve black screen problems on Android apps:

1. Force Close and Reopen:
- Go to Settings > Apps > Nolio
- Tap "Force Stop"
- Reopen the app and check the Calendar screen.

2. Clear App Cache:
- Go to Settings > Apps > Nolio > Storage
- Tap "Clear Cache"
- Open the app again to see if it loads properly.

3. Check for App Updates:
- Open Google Play Store
- Search for Nolio and see if an update is available.
- If yes, update the app and retry.

4. Restart Device:
- Sometimes a simple device reboot can clear minor glitches.

5. Check Internet Connection:
- Ensure you have a stable network since calendar data often syncs online.

If you’ve already tried these or the issue persists, there might be a compatibility problem or a bug affecting the calendar display. Given your device is WebKit-based on Android 10, some rendering issues might occur under specific circumstances.

Let me know which of these you’ve tried so far, and if none work, I can guide you through checking advanced settings or log details to help get this resolved!