Fatal error: Uncaught Error: Interface 'Opis\JsonSchema\SchemaValidator' not found in /var/www/sweves.se/httpdocs/wp-content/plugins/woocommerce/vendor/opis/json-schema/src/Schema.php:22 Stack trace: #0 {main} thrown in /var/www/sweves.se/httpdocs/wp-content/plugins/woocommerce/vendor/opis/json-schema/src/Schema.php on line 22