Something unexpected happened.

I'd like to set up my house internet, so I made an account and do the shopping for me. When I tried to pay a bill, after I entered all my payment infos, some errors occurred when I clicked "submit". I didn't received a confirmation email for this bill and I tried to continue the purchasing process, but I can't do anything in my account. If I click "Account and Identity", "Update contact info", or "Cart' tab, this message is showing "Something unexpected happened. Try refreshing the page. If the problem persists, please check back later.". I think there are some errors in my account. Can someone just check my account?