Fatal error: Uncaught Exception: DateTime::__construct(): Failed to parse time string (CST6CDT) at position 3 (6): Unexpected character in /home/username/public_html/dev/manager/controllers/default/dashboard/widget.grid-online.php:17 Stack trace: #0 /home/username/public_html/dev/manager/controllers/default/dashboard/widget.grid-online.php(17): DateTime->__construct('CST6CDT') #1 /home/username/public_html/dev/core/model/modx/moddashboardwidget.class.php(246): modDashboardWidgetWhoIsOnline->render() #2 /home/username/public_html/dev/core/model/modx/moddashboardwidget.class.php(118): modDashboardWidgetInterface->process() #3 /home/username/public_html/dev/core/model/modx/moddashboard.class.php(78): modDashboardWidget->getContent(Object(WelcomeManagerController)) #4 /home/username/public_html/dev/manager/controllers/default/welcome.class.php(64): modDashboard->render(Object(WelcomeManagerController)) #5 /home/username/public_html/dev/core/model/modx/modmanagercontroller.class.php(149): WelcomeManagerController->process(Arra in /home/username/public_html/dev/manager/controllers/default/dashboard/widget.grid-online.php on line 17
This question has been answered by paulp. See the first response.
Check that the date_timezone in the modx_system_settings has a value, mine is set to Europe/London and this gets me every time when installing Modx on Siteground