Fatal error: Uncaught Error: Interface "MetaboxOrchestra\BoxAction" not found in /var/www/html1/wp-content/plugins/zettle-pos-integration/modules/zettle-product-settings/src/Metabox/ReadonlyMetaboxAction.php:10 Stack trace: #0 {main} thrown in /var/www/html1/wp-content/plugins/zettle-pos-integration/modules/zettle-product-settings/src/Metabox/ReadonlyMetaboxAction.php on line 10