I can still access the admin page, which wasn't the case last time it shut down. There's a threatening message on there though saying the board will shut down if we don't pay (though it's been there for months).
So one option would be to start paying, though I'm a little disinclined to do that if the mobile version isn't working at all.
I might also try setting up a backup board just in case, though it's a bit of a faff as it looks like I'd need to set up a new email for it.
Truly babblers are like the jews, historically oppressed and longing to return to a stable homeland.