Fatal error: Uncaught Error: Class 'JsonSchema\Constraints\Constraint' not found in /mnt/volume_lon1_01/backend/admin/vendor/justinrainbow/json-schema/src/JsonSchema/Constraints/EnumConstraint.php:20 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/admin/vendor/justinrainbow/json-schema/src/JsonSchema/Constraints/EnumConstraint.php on line 20