Search does not work

I’m having the same issue:

I’m using:
– WordPress 3.5 multisite
– Buddypress 1.7.2
– bbPress 2.3.2
– Unconfirmed 1.2.3

What happened: Unconfirmed showed a list of over 300 unconfirmed users on the network. I’m looking for one specific user to activate them. I used the search input above the paginated table of users and typed the username. The page refreshes and doesn’t update with results.

What was expected: After entering the desired username in the search field, and clicking search, the page refreshes and displays my search result. For example I type “john” in the search field and submit. Then the results display of users with the string “john”.

I cannot provide a access to the admin panel of my site, because it would give access to private user information that would breach contract.