FCK Editor Image Upload Issue in server

Question

While i was uploading the image in server it was showing "server error". For image upload i used a method. which is below. But, It is working fine in local but in server it's not working.

public void uploadnow(HttpPostedFileWrapper upload)

        {

            if (upload != null)

            {

                string ImageName = upload.FileName;

                string path = System.IO.Path.Combine(Server.MapPath("~/Uploads/Admin/"), ImageName);

                upload.SaveAs(path);

            }

        }