The servers had a big oops moment at just after 4AM. They remained partially operational in the hours since, but player and world data was not being saved and in some cases deleted.
I have restored both servers from backup. Zz has been rolledback to its last backup at 4AM, whilst LVS has been rolledback a little further to its backup from 12AM.
Sorry if you've been affected by the strange times, or lost any progress since those backups!