Fatal error: Uncaught Error: Interface "MediaWiki\Installer\Hook\LoadExtensionSchemaUpdatesHook" not found in /home/hiphopdi/public_html/wiki2/extensions/Linter/includes/SchemaHooks.php:26 Stack trace: #0 {main} thrown in /home/hiphopdi/public_html/wiki2/extensions/Linter/includes/SchemaHooks.php on line 26