Fatal error: Uncaught Error: Interface "MediaWiki\Hook\ParserFirstCallInitHook" not found in /home/floten1/q.tenbergen.ca/extensions/PageSchemas/includes/PageSchemasHooks.php:14 Stack trace: #0 {main} thrown in /home/floten1/q.tenbergen.ca/extensions/PageSchemas/includes/PageSchemasHooks.php on line 14