Fatal error: Uncaught Error: Class 'JsonSchema\Constraints\Constraint' not found in /home/luxurytr/public_html/lt8/vendor/justinrainbow/json-schema/src/JsonSchema/Constraints/UndefinedConstraint.php:23 Stack trace: #0 {main} thrown in /home/luxurytr/public_html/lt8/vendor/justinrainbow/json-schema/src/JsonSchema/Constraints/UndefinedConstraint.php on line 23