Hi! I see you're having trouble opening the Weigel's app on your phone, and when you try to delete it, it warns that your data will also be deleted. Let's get this sorted out together.

First, just to clarify: is your phone an Android or an iPhone? Also, are you trying to open the app but it just doesn’t respond, or does it crash or show an error message? This info will help me guide you better.

Meanwhile, here’s a basic approach to try:

1. Restart Your Phone: Sometimes a simple reboot can clear up app issues.

2. Check for Network Connection: Make sure your phone is connected to a stable Wi-Fi or mobile data network, since apps often need internet to start properly.

3. Clear Cache (if Android): On Android phones, you can go to Settings > Apps > Weigel's app > Storage and tap “Clear Cache.” This removes temporary files without deleting your personal data.

4. Force Stop and Reopen: In the same app settings, tap “Force Stop” then try opening the app again.

5. Update the App and Device OS: Make sure both the app and your phone’s operating system are up to date. Outdated software can cause apps to misbehave.

As for deleting the app, the warning about data deletion is typical because uninstalling an app usually removes its associated data from your device. If the data is important, sometimes apps have cloud backups or separate ways to preserve it — do you know if Weigel's app saves your data online or only on the phone?

Let me know your phone type and any other details you notice when opening the app, and we can go deeper from there! Are you okay with trying these steps first?