Fatal error: Uncaught Error: Class 'JsonSchema\Exception\RuntimeException' not found in /var/www/html/simplesamlphp/vendor/justinrainbow/json-schema/src/JsonSchema/Exception/ValidationException.php:14
Stack trace:
#0 {main}
  thrown in /var/www/html/simplesamlphp/vendor/justinrainbow/json-schema/src/JsonSchema/Exception/ValidationException.php on line 14