Code-Snippets-Functions/Execute a function on a child site/WooCommerce/redirect-checkout-if-cart-is-empty.txt

function filter_woocommerce_add_notice ( $message ) {
    // Equal to (Must be exactly the same).
    // If the message is displayed in another language, adjust where necessary!
    if ( $message == 'Checkout is not available whilst your cart is empty.' ) {
        return false;
    }   
    
    return $message;
}
add_filter( 'woocommerce_add_notice', 'filter_woocommerce_add_notice', 10, 1 );