Fatal error: Uncaught Error: Class "Yoast\WP\SEO\Presentations\Abstract_Presentation" not found in /home/.sites/57/site3050668/web/wp-content/plugins/wordpress-seo/src/presentations/indexable-presentation.php:60
Stack trace:
#0 {main}
  thrown in /home/.sites/57/site3050668/web/wp-content/plugins/wordpress-seo/src/presentations/indexable-presentation.php on line 60