Hello All!
I'm really sad to say that but I overlooked a very nasty upgrade issue while updating Ejabberd up to a very recent version. As a result it's barely working now (at least some perfectly valid configurations are now refusing connections) and what is even worse *it will wipe out all the data from the previous ejabberd installation* (chat logs, history, user subscriptions, etc) during the upgrade.
So far I have the only advice - don't upgrade Ejabberd if possible. I'll try to provide a fixed build soon.
I'm terribly sorry for that.