Fatal error: Uncaught Error: Class "MediaWiki\Api\ApiQueryBase" not found in /home/reminder_calling/srg.kuality.ca/extensions/Echo/includes/Api/ApiEchoUnreadNotificationPages.php:21 Stack trace: #0 {main} thrown in /home/reminder_calling/srg.kuality.ca/extensions/Echo/includes/Api/ApiEchoUnreadNotificationPages.php on line 21