Hi there! I understand you're experiencing crashes with the FlyNet app, and it shows a message saying "app not online." Let's work through this together.

First, can you tell me if this issue happens with just the FlyNet app or other apps on your iPhone as well? Also, have you already tried restarting your phone or checking your internet connection?

While you answer, here are some steps we can try:

1. Check Your Internet Connection
Make sure your iPhone is connected to Wi-Fi or cellular data and the connection is stable. You can try opening a webpage in Safari to confirm.

2. Force Close and Reopen the FlyNet App
- On your iPhone, swipe up from the bottom of the screen and pause in the middle (or double-click the Home button if you have one) to see the app switcher.
- Find the FlyNet app and swipe it up off the screen to close it fully.
- Then reopen the app.

3. Restart Your iPhone
Sometimes a simple reboot resolves these issues. Press and hold the side button and either volume button, then slide to power off. Turn it back on after about 30 seconds.

4. Check for App Updates
Go to the App Store, tap your profile icon in the top right, and scroll down to see if FlyNet has an available update.

5. Reinstall the FlyNet App
If it still crashes, try deleting the app and reinstalling it from the App Store. This can clear corrupt data.

If after these steps it still says "app not online," the issue could be with FlyNet's servers or a network configuration. Let me know which steps you’ve tried and what you observe, so I can assist you further!