Fatal error: Uncaught Error: Class "AdvancedJsonRpc\Message" not found in C:\xampp\htdocs\snipe-it\vendor\felixfbecker\advanced-json-rpc\lib\Notification.php:13 Stack trace: #0 {main} thrown in C:\xampp\htdocs\snipe-it\vendor\felixfbecker\advanced-json-rpc\lib\Notification.php on line 13