[johnhiler]

500 Internal Server Errors are usually either related to your .htaccess file or to your file permissions:

https://bbpress.org/forums/topic/500-internal-server-error-1#post-13073

Here’s a number of reports from users who ran into similar issues – it was usually resolved by one of those two solutions:

https://bbpress.org/forums/tags/500-error

Good luck! Let us know how it goes…