Looks Like you are taking down the Groups!!
Just got an email saying all groups will be private, no photo or calendar posting. Yahoo is once again destroying an idea that works
Peter Walker commented
We have developed a new replacement platform for YahooGroups and you are welcome to join. We can rebuild your message archives, files, photos, attachments and add all your members on a better and more powerful phpBB forum based system. We offer a full migration service for your existing groups, providing you have a copy of your archives and can even add your posts from 2020. Full details at https://forums.group