Error while creating web resource through SDK message.

I have referred one of the page on MSDN https://msdn.microsoft.com/en-us/library/gg327924.aspx. Here they convert a content into binary format and then it create a particular web resource.

To refer this my html are stored on CRM field entity and i have set the crm field html  to a web resource content, i have specified the code below.

Entity TileConfiguration = service.Retrieve("livetile_tileconfiguration", entity.Id, new ColumnSet(true));

                string JSContent = TileConfiguration.Attributes["livetile_jscontent"].ToString();
                string HTMLContent = TileConfiguration.Attributes["livetile_htmlcontent"].ToString();

                //Set the Web Resource properties
                WebResource wr = new WebResource
                {
                    Content = JSContent + HTMLContent, // Content set
                    DisplayName = "Test1",
                    Description ="Sample Test",
                    Name = "livetile_" +"test1",
                    LogicalName = WebResource.EntityLogicalName,
                    WebResourceType = new OptionSetValue(1)
                };

                CreateRequest cr = new CreateRequest
                {
                    Target = wr
                };
             

               service.Execute(cr);

The tile got created successfully but when i am clicking on text editor on created web resource. it shows an error. What possibly the cause of this error.