Fatal error: Uncaught Error: Class 'Whoops\Handler\Handler' not found in D:\xampp7\htdocs\www\nbkm\show_pe\vendor\filp\whoops\src\Whoops\Handler\PlainTextHandler.php:20 Stack trace: #0 {main} thrown in D:\xampp7\htdocs\www\nbkm\show_pe\vendor\filp\whoops\src\Whoops\Handler\PlainTextHandler.php on line 20