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