Can't renew a subscription

Hello,
I have Avast Premium and I got a message that in couple days my subscription will expired. There is big button “renew now” (I am translating it from polish) but after clicking on it I am getting an error: “The online content is unavailable”. Of course I do have internet connection. Reboot didn’t help.
What can I do?

Hi, Avast Premium is no business product. Contact consumer support: https://support.avast.com/contact

Thank you. I will do that.

You’re welcome.