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