Fatal error: Uncaught Error: Interface 'Yoast\WP\SEO\Promotions\Domain\Promotion_Interface' not found in /home/prospera/public_html/wp-content/plugins/wordpress-seo/src/promotions/domain/abstract-promotion.php:8 Stack trace: #0 {main} thrown in /home/prospera/public_html/wp-content/plugins/wordpress-seo/src/promotions/domain/abstract-promotion.php on line 8