1 year subscription expired after only 3 months

I paid for 1 year of Avast Anti-Virus and it has just expired and will not automatically update. I have tried to get the activation code off my account but it shows an error when I click on the button that should open to show me the code. What can I do?

Try this > https://www.avast.com/resend-license-paid.php

alternative this > https://support.avast.com/support/tickets/new

Check your system date day/month/year and adjust as required.

If it is correct - Avast 2016: Repair and reset Avast Antivirus - https://www.avast.com/faq.php?article=AVKB204#artTitle