Issue after upgrade - No entry or class found for 'usersmanager.user_preference_names'

Hello after upgrading Matomo I’m seeing the following message when I go to the website.

No entry or class found for ‘usersmanager.user_preference_names’

I didn’t initially setup this instance so I’m not sure if this a problem with the core functionality or a plugin/additional configuation. It seems like similar issues are resolved by modifying global.php but I haven’t see any configuration related to usersmanager.

I think adding the UsersManager plugin to config.ini.php fixed this.
Plugins[] = “UsersManager”