Fatal error: Uncaught Error: Class "DebugBar\DataFormatter\DataFormatter" not found in E:\xampp\htdocs\stms\vendor\barryvdh\laravel-debugbar\src\DataFormatter\SimpleFormatter.php:12 Stack trace: #0 {main} thrown in E:\xampp\htdocs\stms\vendor\barryvdh\laravel-debugbar\src\DataFormatter\SimpleFormatter.php on line 12