Multisite Privacy Plugin Password Protectin not working anymore

Since yesterday (Update of Donnchase WordPress MU Domain Mapping to V.0.5.5) Multisite Privacy Plugin doesn't work correctly anymore when you choose "Anyone that visits must first provide this password"

Once you enter the required password it redirects to the normal login page instead of showing the page.

You can check it out here:
http://intern.junior-ranger.de/

Test-PW is set to: juniorranger

We need support on this one :slight_smile: