HtmlWeb() returns null in agilitypack

I try, to load a page to get a htmldocument, but whatever i do it returns null, because the web.load gives me null.

I tried to actually get solutions that work, and copy paste them into my project, and they do still return null

                HtmlAgilityPack.HtmlWeb web = new HtmlWeb();
                web.PreRequest += request =>
                {
                    request.CookieContainer = new System.Net.CookieContainer();
                    return true;
                };
                MessageBox.Show("Loading html");
                var doc = web.Load("url");```