Hi there! I understand your Strava app is recording the activity but then shows an error after saving, preventing you from viewing the results or your activity history. Let’s get to the bottom of this together.

To start, could you let me know if:
- The error shows right after saving or when opening the activity later?
- You’ve tried viewing the activity on a different device or on Strava's web version?
- This issue happens with all activities or just certain ones?
- You’ve recently updated the Strava app to the latest version from the App Store?
- Your iPhone has a stable internet connection when saving and viewing activities?

Meanwhile, here are some steps you can try to fix this:

1. Force close and reopen the app:
Sometimes the app can get stuck in a bad state. Double tap your Home button or swipe up and hold from bottom (depending on your iPhone model), then swipe the Strava app off the screen to close it. Reopen it and check if your activities show.

2. Pull down to refresh the feed:
In your activity feed or history screen, try pulling down on the screen and release to refresh the data. This can help trigger a sync with Strava’s servers.

3. Check your internet connection:
Make sure your iPhone’s Wi-Fi or cellular data is active and stable. Poor connectivity can cause sync errors.

4. Log out and log back in:
Go to your Strava settings, log out of your account, then log back in. This will refresh your account data.

5. Restart your iPhone:
A reboot can clear temporary glitches affecting the app or system.

6. Update the Strava app:
Verify the app is up to date with the latest version on iOS 18.7. Updates often fix bugs causing save or sync problems.

7. Reinstall the app:
If nothing else works, try deleting the Strava app and reinstalling it fresh from the App Store. You won’t lose your data as it’s saved in your account online.

If after these steps you still can’t view your activities or get errors, it may be a server sync issue or a bug that requires deeper investigation.

Would you like me to guide you through any of these steps? Also, if you could share the exact error message shown, it would be really helpful in narrowing this down.

Are you comfortable trying these troubleshooting tips?