Fatal error: Uncaught Error: Interface 'Opis\JsonSchema\Schema' not found in /var/www/sweves.se/httpdocs/wp-content/plugins/woocommerce/vendor/opis/json-schema/src/Schemas/AbstractSchema.php:23 Stack trace: #0 {main} thrown in /var/www/sweves.se/httpdocs/wp-content/plugins/woocommerce/vendor/opis/json-schema/src/Schemas/AbstractSchema.php on line 23