Fatal error: Uncaught Error: Class 'JsonSchema\Constraints\BaseConstraint' not found in /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Libraries/justinrainbow/json-schema/src/JsonSchema/Validator.php:23 Stack trace: #0 {main} thrown in /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Libraries/justinrainbow/json-schema/src/JsonSchema/Validator.php on line 23