Arty 3D Viewer needs WooCommerce plugin to be installed and activated'; exit; } flush_rewrite_rules(); add_option( 'arty_3dmodelviewer_activation_redirect', 'true', '', 'yes' ); } public static function arty_3dmodelviewer_activation_redirect() { if ( get_option('arty_3dmodelviewer_activation_redirect') ){ delete_option( 'arty_3dmodelviewer_activation_redirect' ); wp_redirect( esc_url( admin_url( 'admin.php?page=wc-settings&tab=arty_3dmodelviewer' ) ) ); exit; } } }