Fatal error: Uncaught Error: Class "PKP\scheduledTask\ScheduledTask" not found in /home/jurna812/public_html/lib/pkp/classes/task/RemoveUnvalidatedExpiredUsers.php:24 Stack trace: #0 {main} thrown in /home/jurna812/public_html/lib/pkp/classes/task/RemoveUnvalidatedExpiredUsers.php on line 24