If it is permanently deleted i'm afraid there's not a lot left to do. What you can however try, is to deactivate it again. More about that can be found right here: https://www.facebook.com/help/214376678584711
We need more information that this to help you. I can only take stabs in the dark since we don't know what isn't working. I'm going to guess that it isn't turning on. I would suggest either trying a new charger for it, or attempting a factory reset by following the instructional video below. If you give us more information, we will be able to help better without you having to possibly wipe your entire phone to assist.