Fatal error: Uncaught Error: Interface "MediaWiki\Installer\Hook\LoadExtensionSchemaUpdatesHook" not found in /home/floten1/q.tenbergen.ca/extensions/Math/src/HookHandlers/SchemaHooksHandler.php:11 Stack trace: #0 {main} thrown in /home/floten1/q.tenbergen.ca/extensions/Math/src/HookHandlers/SchemaHooksHandler.php on line 11