Every time i try to order something off grasscity.com, i get internal error 500. I went to support and they havent anwsered my question which is what is internal error 500 and how can i order off grasscity.com. Can anyone help me out here? Also, does anyone know where i can get colorchanging bubbler that is shown when i click on the link "What is Changing Glass?" http://shop.grasscity.com/shop/grasscity/color_changing.html?id=GJGJs8NT Thanks for your help, but otherwise this is a great website