Fatal error: Uncaught Error: Class "JsonSchema\Exception\RuntimeException" not found in C:\xampp\htdocs\snipe-it\vendor\justinrainbow\json-schema\src\JsonSchema\Exception\ValidationException.php:12 Stack trace: #0 {main} thrown in C:\xampp\htdocs\snipe-it\vendor\justinrainbow\json-schema\src\JsonSchema\Exception\ValidationException.php on line 12