Fatal error: Uncaught Error: Class "MediaWiki\Extension\Notifications\Formatters\EchoEventFormatter" not found in /usr/www/otte/public/sphunt1/extensions/Echo/includes/Formatters/EchoFlyoutFormatter.php:15 Stack trace: #0 {main} thrown in /usr/www/otte/public/sphunt1/extensions/Echo/includes/Formatters/EchoFlyoutFormatter.php on line 15