Fatal error: Uncaught Error: Class 'Symfony\Component\Notifier\Exception\LogicException' not found in C:\xampp\htdocs\plugins\Symfony\Component\Notifier\Exception\UnsupportedSchemeException.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\plugins\Symfony\Component\Notifier\Exception\UnsupportedSchemeException.php on line 20