Fatal error: Uncaught Error: Class "Jose\Component\Signature\Serializer\Serializer" not found in T:\Xampp\htdocs\notice\vendor\web-token\jwt-signature\Serializer\JSONFlattenedSerializer.php:14 Stack trace: #0 {main} thrown in T:\Xampp\htdocs\notice\vendor\web-token\jwt-signature\Serializer\JSONFlattenedSerializer.php on line 14