Hi! I see you're having trouble with the Y-Disk app crashing immediately after opening it on your iPhone 16. That shouldn't be happening, and I'd be glad to help you sort it out.

Just to clarify a couple of things before we dive in:
- Have you noticed if the app crashes as soon as it opens every single time?
- Did this start happening after a recent iOS update or app update?
- Have you tried any fixes already, like restarting your phone or reinstalling the app?

Meanwhile, here are some step-by-step checks we can try, starting simple and moving towards more involved solutions:

1. Force Close and Reopen the App
- Double-click the Home button or swipe up from the bottom and pause (depending on your settings) to bring up the app switcher.
- Find Y-Disk and swipe it up to force close it.
- Then reopen the app and see if it still crashes.

2. Restart Your iPhone
- Hold the side button and either volume button until you see the power off slider.
- Slide to power off, wait for about 30 seconds, then turn the phone back on.
- Try opening the app again.

3. Check for Updates
- Go to the App Store, tap your profile icon, then scroll to check if there is an update available for Y-Disk.
- Also, check if your iPhone's iOS is fully updated in Settings > General > Software Update. Sometimes app crashes happen due to incompatibility with the iOS version.

4. Reinstall the App
- Press and hold the Y-Disk app icon until it jiggles, then tap the 'X' or 'Remove App' and confirm to delete it.
- Restart your iPhone once more, then go back to the App Store and download the Y-Disk app again fresh.

If none of these steps work, it could be an app incompatibility issue with the latest iOS version on iPhone 16 that some other users have reported. If so, the developers might need to release an update to fix this crash bug. In that case, you can also check if there are any temporary workarounds posted or contact Y-Disk support directly.

Let me know what you’ve tried so far or if you want me to guide you through these steps live! Are you satisfied with these initial suggestions?