Fatal error: Uncaught Error: Class "Symfony\Contracts\EventDispatcher\Event" not found in /home/gujjerji/public_html/support/vendor/uvdesk/core-framework/SwiftMailer/Event/ConfigurationUpdatedEvent.php:12 Stack trace: #0 {main} thrown in /home/gujjerji/public_html/support/vendor/uvdesk/core-framework/SwiftMailer/Event/ConfigurationUpdatedEvent.php on line 12