Events+ Calendar was working and now it's broken.

So I had the Events+ plug in working but did not realize that I needed to have a log in tool so that people could purchase and register for events.

I added Membership today, tested it with a sample purchase, and everything worked fine so I logged out and discovered that I needed to add another plugin in order to have a way to log back into Membership for people who sign up. I have yet to choose that log in plugin but when I went back to look at the site with my client we discovered that somehow the Calendar on the Events tab is now broken and I can't see what it is that is causing it to be broken.

Anybody have a suggestion or do I just have to uninstall and reinstall?