Jamie
If the manager is completely gone, you may have to consider leaving.
I would guess its likely your previous league host is no longer active at all, if i was to hazard a guess :(
The 4 or 5 of you who are active might need to create a new league or collectively join a different active one. But unfortunately this means you will incur the hefty penalties associated with this.
Before the option was made available to league owners Jack would manually change league hosts, but now league owners have the option I am not sure he would consider it. Maybe worth arguing how punitive the penalties are for leaving your current league?
There isnt a database where the admin cant change values. (or allowing you to change them, eg. password resets). Problem is that it has to be done manually.....