Fatal error: Uncaught Error: Class "Concrete\Core\Calendar\Event\Command\CalendarEventCommand" not found in /srv/disk1/2895578/www/whittonphotographicclub.org.uk/concrete/src/Calendar/Event/Summary/Template/Command/DisableCustomCalendarEventSummaryTemplatesCommand.php:7 Stack trace: #0 {main} thrown in /srv/disk1/2895578/www/whittonphotographicclub.org.uk/concrete/src/Calendar/Event/Summary/Template/Command/DisableCustomCalendarEventSummaryTemplatesCommand.php on line 7