Undefined index warning

Getting an error:
WARNING: /core/Tracker/TrackerConfig.php(35): Notice - Undefined index: enable_default_location_provider - Matomo 4.8.0 - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already) (Module: UserCountry, Action: adminIndex, In CLI mode: false)

BTW, I also have an error:
The configured geolocation provider default is not available anymore, please configure another one.