I donated and got the brute-force protection to work, but when I go to add it another website of mine, it says “Your Server could not start a Session!”
My installation key is also registered, in case that was needed too.
That error means that there is no response from your server when testing the session feature. I am not sure why your site will not start a session but it is usually due to a server configuration issue, like php.ini settings or the permissions on the /tmp/ directory (or wherever the session files are kept on your server). Check your server’s error_log files and ask your host to verify that session files can be stored on your server.