Cannot install updates fpr Appts +

I purchased Appts + on February 11 from this site for a WordPress/BuddyPress installation on a subdirectory. At the time, I called the subdirectory "register2015". Since then, I change the name to "festival2015." Now the updates won't install automatically. What can I do?

user name = president edbfa
email = president@edbfa.ca