Can't connect with Woocommerce using WooCommerceNET C# because of version

I am trying to connect with WooCommerce using API v2.
I am using WooCommerceNET=0.8.1 and NETFramework=v4.7.2

Code:

using WooCommerceNET;
using WooCommerceNET.WooCommerce.v2;
using WooCommerceNET.WooCommerce.v2.Extension;

...
public void AddToWoocomerce()
        {
            string consumerKey = "ck_....";
            string consumerSecret = "cs_...";

            RestAPI rest = new RestAPI("http://makm862.vot.pl/wp-json/wp/v2/", consumerKey, consumerSecret);

            WCObject wc = new WCObject(rest);  
        }

I got exception:

Please use WooCommerce Restful API Version 2 url for this WCObject. e.g.: http://www.yourstore.co.nz/wp-json/wc/v2/

• It worked fine with Python (https://pypi.org/project/WooCommerce/) before, but I need in C#.
• Legacy API enabled
• Read/Write mode
• WooCommerceNET.0.8.0 also checked

What I am doing wrong?