Fatal error: Uncaught Error: Class 'Symfony\Polyfill\Intl\Normalizer\Normalizer' not found in D:\xampp\htdocs\psp\backend\vendor\symfony\polyfill-intl-normalizer\Resources\stubs\Normalizer.php:3 Stack trace: #0 {main} thrown in D:\xampp\htdocs\psp\backend\vendor\symfony\polyfill-intl-normalizer\Resources\stubs\Normalizer.php on line 3