Fatal error: Uncaught Error: Interface "League\Csv\Serializer\SerializationFailed" not found in C:\xampp\htdocs\snipe-it\vendor\league\csv\src\Serializer\MappingFailed.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\snipe-it\vendor\league\csv\src\Serializer\MappingFailed.php on line 21