Hi there! It sounds like you're having a tough time with the Sun app on your iPhone. I'm here to help!

Since you've been using the app for years without any issues, let’s start with a few simple troubleshooting steps that might help the app run smoothly again.

1. Check Your Internet Connection: Sometimes, a weak Internet connection can cause the app to stall. Make sure you're connected to Wi-Fi or, if using mobile data, that your signal is strong.

2. Restart the App: Close the app completely (swipe it up from the app switcher) and then reopen it. This can sometimes clear temporary issues.

3. Clear App Cache: Although iPhones do not have a direct option to clear app cache like Android, you can try deleting the app and reinstalling it. This can help with loading errors. To do this:
- Press and hold the Sun app icon.
- Tap “Remove App,” then tap “Delete App” to confirm.
- Go to the App Store and reinstall the Sun app.

4. Update the App: Make sure that you’re using the latest version of the Sun app. You can check for updates in the App Store under the Updates section.

5. Restart Your Device: If the app is still stalling, try restarting your iPhone. This can help resolve various issues.

If you've tried all these steps and the app is still stalling, it might be a more significant issue with the app or server. In that case, contacting support directly would be the next best step. You can reach out to them at [email protected] for assistance.

Let me know if these steps help or if you need further assistance! Are you satisfied with the solution I provided?