Yeah it happened earlier this month due to influx of newer members. Unfortunately, if you didn't tag or rate any of the stories in your bookmarks they wont be coming back, so you'll have to start over. I don't know what genres you read but my account has lists of the stories I've read since my organized lists didnt get deleted (800+). I hope this helped you!
So you previously tagged and rated those bookmarks and they are still not back? Then a way to contact them: [email protected]

is the site down? i haven’t been on here in over a month