Hi this has happened to me twice now, they can give you back leadership and your imprints ( just make sure to tell them you need it done) and make sure they are not in pods. Time wise it can be two weeks or a month depending on how busy the GMs are. So I really hope you have tribe mates that can re invite you to the tribe while you wait. If you are solo your out of luck, best thing you can do in that case is to hope you most of your tames are podded up and wait till you can destroy the foundation the fridge is on to collect what you can and rebuild.