I signed up for a Stellar account in 2014. At the time, Stellar allowed you to authenticate with Facebook. It looks like that is no longer possible and, as a result, I'm locked out of my account. I'd love help from his community on how to resolve this issue (Stellar is kind of hard to get in touch with). I've perused all the Support FAQs but, to no avail. If folks have any tips or have run into this before, I'd really appreciate it!