I'm having the exact same problem. I created my account on April 1, and submitted a run yesterday. The account and run were gone today, only remembering my profile picture when I made a new one. It also hasn't let me sign in on my computer, saying that the site is in read only for maintenance. I can sign in on my phone though, but im not sure if this has anything to do with my account's deletion.

If you guys haven't noticed by now, the site's been rolled back by 3 days.