Playing around in Matomo and received this error at the top of the Setttings page
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 - 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: UserId, Action: getUsers, In CLI mode: false)
I get the same error. This occurred after configuring the archive reports to use cron and after the firs run of that cron job. (although this migh be unlrelated - I’m a new user so finding my feet)