Hi,
Avast! Web Shield blocks a website that’s safe. Not completely, but when i try to login to the site, firefox gives an error saying “the connection was reset”. Tried with Chrome too, it allowed me to enter the sign in page but when signing in, it gave the same error.
This organization is aware of the issue, since they offer a work-around:
https://www.pam.fi/wiki/kirjautumisongelmat.html