I fixed it. The author is correct – this is a wordpress function and it was looking for user roles that were, at the time, non-existant. According to the PHP, there were 3 user types it was searching for, so once I added these users, the plugin worked correctly.
The only way to really narrow this down is to enable php errors so you can actually see what’s going on and go from there. Once I had the function error, I was able to narrow it down in no time. Thanks for everyone’s replies.
