I've tried a few times to get to the STM8 MCUs forum (via the link under "Forums" pointing to https://community.st.com/community/stm8-mcus) today, but always get "Unauthorized This place or content does not exist or access to it is restricted. If you think this is a mistake, please contact your administrator or the person who directed you here."
I was able to access the STM8 MCUs forum before. I can still access other forums. I can still post replies in the STM8 forum by getting there some other way (e.g. the links to individual threads I get in email notifications when someone replies to one of my posts).