If you haven't resolved this you need to edit the wallet.conf file.  Go to their discord channel to find the addnode lines.  Then you just restart, and wait a while.

That's what I thought, but didn't feel it was necessary to argue with them.  I'm just guessing they're dealing with the fork.  I think there was some mention of the fork earlier in this thread.

I actually asked this question of them, and got this response:

XDNA deposits and withdrawals are disabled because of the upcoming fork.