Fatal error: Uncaught Error: Class "MediaWiki\Auth\AbstractPreAuthenticationProvider" not found in /var/www/html/extensions/ConfirmAccount/includes/business/ConfirmAccountPreAuthenticationProvider.php:28 Stack trace: #0 {main} thrown in /var/www/html/extensions/ConfirmAccount/includes/business/ConfirmAccountPreAuthenticationProvider.php on line 28