Fatal error: Uncaught Error: Class "MediaWiki\Extension\Notifications\Model\AbstractEntity" not found in /home/reminder_calling/srg.kuality.ca/extensions/Echo/includes/Model/TargetPage.php:14 Stack trace: #0 {main} thrown in /home/reminder_calling/srg.kuality.ca/extensions/Echo/includes/Model/TargetPage.php on line 14