Fatal error: Uncaught Error: Interface "MediaWiki\Hook\SpecialTrackingCategories__preprocessHook" not found in /home/reminder_calling/srg.kuality.ca/extensions/CategoryTree/includes/Hooks.php:58 Stack trace: #0 {main} thrown in /home/reminder_calling/srg.kuality.ca/extensions/CategoryTree/includes/Hooks.php on line 58