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   public Task<string> UploadIMGProfile(string file)        
        { 
            if (!File.Exists(file)) return "";
            if(string.IsNullOrEmpty(LSD))
            {
                Get("https://www.facebook.com").Wait();
            }    
           
            string nameanh = RandomString(8) + ".jpg";
            RestRequest request = new RestRequest($"https://www.facebook.com/profile/picture/upload/?photo_source=57&profile_id={UID}&__user={UID}&__a=1&fb_dtsg={Fb_dtsg}&jazoest={Jazoest}&lsd={LSD}");
            request.AddHeader("accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9");
            request.AddHeader("sec-fetch-site", "same-origin");
            request.AddHeader("sec-fetch-dest", "empty");
            request.AddHeader("accept-language", "en-US,en;q=0.9");
            request.AddHeader("sec-fetch-mode", "cors");
            request.AddHeader("x-fb-lsd", LSD);
            request.AddHeader("referer", "https://www.facebook.com/");
            request.AddHeader("sec-ch-ua-platform", "\"Windows\"");
            string typeanh = "image/png";      
            if (file.ToLower().IsContains("jpg")) typeanh = "image/jpg";
            request.AddFile(nameanh, file, typeanh);
            request.Method = Method.Post;
            var res = Client.Execute(request);
            html = res?.Content;
            return RegexMatch(html, "fbid\":\"(\\d+)").Groups[1].Value;
        }