Fatal error: Uncaught Error: Interface "MediaWiki\Mail\ConfirmEmail\IConfirmEmailBuilder" not found in /var/www/html/w/includes/Mail/ConfirmEmail/PlaintextConfirmEmailBuilder.php:7 Stack trace: #0 {main} thrown in /var/www/html/w/includes/Mail/ConfirmEmail/PlaintextConfirmEmailBuilder.php on line 7