Fatal error: Uncaught Error: Interface "Skyboard\Application\Handlers\CommandHandler" not found in /home/supratz/www/skyboard-refac/backend/src/Application/Handlers/MoveColumnHandler.php:15 Stack trace: #0 {main} thrown in /home/supratz/www/skyboard-refac/backend/src/Application/Handlers/MoveColumnHandler.php on line 15