Fatal error: Uncaught Exception: Getting unknown property: WP_Defender\Model\Setting\Security_Headers::sh_xframe_urls in /home/customer/www/yourpivot.net/public_html/wp-content/plugins/wp-defender/framework/base/component.php:242 Stack trace: #0 /home/customer/www/yourpivot.net/public_html/wp-content/plugins/wp-defender/src/component/config/config-adapter.php(398): Calotes\Base\Component->__get('sh_xframe_urls') #1 /home/customer/www/yourpivot.net/public_html/wp-content/plugins/wp-defender/src/component/config/config-adapter.php(41): WP_Defender\Component\Config\Config_Adapter->update_security_headers(Array) #2 /home/customer/www/yourpivot.net/public_html/wp-content/plugins/wp-defender/src/upgrader.php(165): WP_Defender\Component\Config\Config_Adapter->upgrade(Array) #3 /home/customer/www/yourpivot.net/public_html/wp-content/plugins/wp-defender/src/upgrader.php(233): WP_Defender\Upgrader->migrate_configs('2.3.1') #4 /home/customer/www/yourpivot.net/public_html/wp-includes/class-wp-hook.php(303): WP_Defender\Upgrader->run( in /home/customer/www/yourpivot.net/public_html/wp-content/plugins/wp-defender/framework/base/component.php on line 242