From https://forum.matomo.org/t/deprecation-error-in-plugins-userid-reports-getusers-php/51551/3

• WARNING: /plugins/UserId/Reports/GetUsers.php(58): Deprecated - Creation of dynamic property Piwik\Plugins\CoreVisualizations\Visualizations\HtmlTable\Config::$show_active_view_icon is deprecated - Matomo 4.14.2 - (Module: UserId, Action: getUsers, In CLI mode: false)