Fatal error: Uncaught Error: Call to undefined function wp_get_wp_version() in /var/www/html/wp-content/plugins/wordpress-seo/src/conditionals/abilities-api-conditional.php:21 Stack trace: #0 /var/www/html/wp-content/plugins/wordpress-seo/src/loader.php(270): Yoast\WP\SEO\Conditionals\Abilities_API_Conditional->is_met() #1 /var/www/html/wp-content/plugins/wordpress-seo/src/loader.php(208): Yoast\WP\SEO\Loader->conditionals_are_met('Yoast\\WP\\SEO\\Ab...') #2 /var/www/html/wp-includes/class-wp-hook.php(307): Yoast\WP\SEO\Loader->load_integrations('') #3 /var/www/html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array) #4 /var/www/html/wp-includes/plugin.php(476): WP_Hook->do_action(Array) #5 /var/www/html/wp-settings.php(598): do_action('init') #6 /var/www/html/wp-config.php(98): require_once('/var/www/html/w...') #7 /var/www/html/wp-load.php(50): require_once('/var/www/html/w...') #8 /var/www/html/wp-blog-header.php(13): require_once('/var/www/html/w...') #9 /var/www/html/index.php(17): require('/var/w in /var/www/html/wp-content/plugins/wordpress-seo/src/conditionals/abilities-api-conditional.php on line 21