[eluser]kilishan[/eluser]
@ipsod - I'm not sure what's going on here or why it's trying to pull in the constants.php twice. The two things that come to mind, though, are:
1) With this being a sub-directory, is your main site CI based? If so, you probably need to adjust the main .htaccess file and point your rewritebase to the proper folder, otherwise, it might be trying to use your main site's configuration/index file to run Bonfire, which won't work.
2) Did you download from ci-bonfire/Bonfire on GitHub or lonnieezell/bonfire? I've noticed a few new people watching/forking the lonnieezell one, which is old and will be removed soon, but I wanted to give people time to get switched over and not just yank it away without any warning.
