Fatal error: Uncaught Error: Class "JMS\Serializer\AbstractVisitor" not found in C:\laragon\www\siesicis\ovh-sms\vendor\jms\serializer\src\JMS\Serializer\YamlSerializationVisitor.php:34 Stack trace: #0 {main} thrown in C:\laragon\www\siesicis\ovh-sms\vendor\jms\serializer\src\JMS\Serializer\YamlSerializationVisitor.php on line 34