A big part of this sell off is based on manipulation of shorts who just made a ton of money getting you scare. It is clear that the company has a lot to do to put this ship back on the track, but that is so bad that it dropped 50% in couple of hours? Of course not! This stock will go higher in a short while. Maybe not so aggressively how it did in the past, but it will. Don't loose everything, be patient and a better time to sell will come.