Fatal error: Uncaught Error: Class "Whoops\Handler\Handler" not found in C:\xampp\htdocs\adminlte3\vendor\filp\whoops\src\Whoops\Handler\PlainTextHandler 2.php:20
Stack trace:
#0 {main}
thrown in C:\xampp\htdocs\adminlte3\vendor\filp\whoops\src\Whoops\Handler\PlainTextHandler 2.php on line 20