Constant Site Error

I have tried updating my baby registry for the past week and 95% of the time I try, when I log in it gives me an error message saying there is a site error and to try reloading later. After that any site linked to toys r us or babies r us won't work anymore, neither from my laptop of my Iphone. It does this more often than not and continuously stops me from updating my baby registry. This is very frustrating!