Flickr went off line at 5pm PDT yesterday (May 22, 2019) so SmugMug could move it from Yahoo's servers to Amazon's. Apparently it has not gone well nor as planned. The downtime was stated to be expected to be for just 12 hours, and the site was supposed to be up and running once more by 5am PDT. But, at this writing (approx. 8:30am PDT) the site is still down. It has been a very unstable site for the past month. Have heard lots of excuses why. But, none of them rang true. More seemed that the admin team was just in over their head dealing with all the site's growing issues. That is proven to be true by the present situation there. When and in what condition it will be when it finally comes back online is anyone's guess. If you have an account there, I hope you are fully backed up. Good luck.