RE: Membership Premium updates & problem

I currently have Membership Premium loaded on a WP site for a client. Potential members are currently unable to sign up - the process never moves past the initial info entry page. The plugin indicates that there is an update available - how do I access the update?

I have taken over this project from another developer / agency and am unfamiliar with wpmudev. I am becoming more familiar with it, but I have a time-sensitive issue and could really use a quick assist here.

Best Regards,
William Siebold
contact@williamsiebold.com