After running my React Native app on a real device, I got an error screen.

Invalid character: ‘ud835’
Invalid character: ‘ud835’
no stack 
no stack

There are no additional details.

only getting a warning “warn Package react-native-math-view contains an invalid configuration: “dependency.assets” is not allowed. Please verify it’s properly linked using the “react-native config” command and contact the package maintainers about this.”

but when I open the developer menu, the app will work and not show the error.
but that time after building the apk, the app is not opening on any phone.

I have tried to update the node modules but not worked