Can´t renew my subscription

My subscription is going to expire tomorrow. I have Avast for many years now.
For the last 3 days I have been trying to renew but I go to shop, click the option an then get the message:

The content is temporarily unavailable, please try it again later.

What is going on?

Which avast!..?? (Free/Pro/IS/Premier)

Internet Scurity. So I guess it´s Pro with some extra features.

I uninstalled and re installed Avast and still have the same problem.
I also get this message when I try to connect to my Avast account.

I`m on a Windows XP machine by the way.

The shop works here, I just checked it.
Which browser are you using…?? You could try another one.