Could you let us know what error you get when it crashes? If this is a native crash you might need to use adb logcat to get the details.
Someone else mentioned a “crash on first run” issue as well. In their case it is caused by an Illegal instruction signal and there’s already a React Native issue for it. So maybe you’re running into the same problem:
If your issue is the same and you have more details (e.g. it only happens when requesting access to the camera, or only on a certain Android version or on certain devices, etc.) then add that info to the issue.