To resolve the issue of the Vivino app crashing when using the camera scanner, you can follow these steps:

1. Update the Vivino App: Ensure that you have the latest version of the app. Go to the app store on your device and check for updates. An update may contain bug fixes that address this specific issue.

2. Clear App Cache: Sometimes, the app cache can cause unexpected behavior. To clear the cache:
- Go to your device's Settings.
- Navigate to Apps or Application Manager.
- Find Vivino in the list and tap on it.
- Tap on Storage and then select Clear Cache.

3. Restart Your Device: A simple restart can clear any temporary issues that could be causing the app to crash. Turn off your device, wait for a few seconds, and then turn it back on.

4. Check Permissions: Ensure that Vivino has the necessary camera permissions. Go to your device's Settings, then:
- Select Apps > Vivino > Permissions.
- Make sure that the camera permission is enabled.

5. Reinstall the App: If the issue persists, uninstall the Vivino app and then reinstall it:
- Press and hold on the Vivino app icon and select Uninstall.
- Go to the app store and download Vivino again.

6. Free Up Device Resources: If your device is low on memory or storage, it may cause the app to crash. Check your device's storage and close any unnecessary applications running in the background.

7. Check for System Updates: Ensure your device's operating system is up to date. Go to Settings > System > Software Update and check for updates.

8. Try Using Another Barcode Scanner: If possible, use another barcode scanning app to see if the issue is specific to Vivino or a broader problem with your camera.

If none of these steps resolve the issue, it may be a bug related to the Vivino app itself. In that case, consider reaching out for support through their troubleshooting page or community forums - learn more. Additionally, there are discussions regarding similar problems on various platforms such as Reddit and GitHub that could provide further insights - learn more.

By following these steps, you should be able to diagnose and possibly fix the crashing issue when using the camera scanner feature in Vivino.