Fatal error: Uncaught Error: Class 'Opis\JsonSchema\Validator' not found in /home/tholic/training.stjohnkenya.org/wp-content/plugins/woocommerce/vendor/opis/json-schema/src/CompliantValidator.php:20 Stack trace: #0 {main} thrown in /home/tholic/training.stjohnkenya.org/wp-content/plugins/woocommerce/vendor/opis/json-schema/src/CompliantValidator.php on line 20