Appointments+ update FAILED


I recently moved my Wordpress site to a new folder and domain, and while the transition went smoothly, after the move there we're updates for both Appointments+ and Marketpress available. I updated both and while the Marketpress update was successful, the Appointments+ udpate failed and now the plugin has been deactivated. I spent a TON of time setting things up in Appointments+ and will be completely f****d if I lose that work. How do I get the plugin back up and running now and ensure I don't lose my work? Please reply ASAP this is very very urget to me!