Do you know if there is a newer version of Woopress available? The theme has several outdated Woocommerce files, some are very outdated, including form-checkout.php, which might be causing the gust checkout issue above.
woopress/woocommerce/cart/cart-empty.php version 2.0.0 is out of date. The core version is 3.1.0,
woopress-child/woocommerce/cart/cart.php version 3.0.3 is out of date. The core version is 3.1.0,
woopress/woocommerce/cart/cross-sells.php,
woopress/woocommerce/cart/mini-cart.php version 2.5.0 is out of date. The core version is 3.1.0,
woopress/woocommerce/checkout/form-billing.php version 3.0.0 is out of date. The core version is 3.0.9,
woopress/woocommerce/checkout/form-checkout.php,
woopress/woocommerce/checkout/form-shipping.php version 3.0.0 is out of date. The core version is 3.0.9,
woopress/woocommerce/myaccount/form-edit-address.php version 3.0.0 is out of date. The core version is 3.0.9,
woopress/woocommerce/single-product/product-image.php version 3.0.2 is out of date. The core version is 3.1.0,
woopress/woocommerce/single-product/product-thumbnails.php version 3.0.2 is out of date. The core version is 3.1.0,
