new NativeEventEmitter()` was called with a non-null argument without the required `addListener` method

This is likely due to the newest version of react-native. A lot of libraries still haven’t released a new version to handle these warnings (or errors in some case). Examples include https://github.com/react-navigation/react-navigation/issues/9882 and https://github.com/APSL/react-native-keyboard-aware-scroll-view/pull/501.
If it bothers you, you can hide the warning for now (source):

import { LogBox } from 'react-native';
LogBox.ignoreLogs(['new NativeEventEmitter']); // Ignore log notification by message
LogBox.ignoreAllLogs(); //Ignore all log notifications