If you try to go to the forums from the navigation bar on a user profile (assuming it's not altered by profile CSS), it brings up a "Not Found" page.

The link in the bar is incorrect: https://subeta.net/forums/index.php The correct link: https://subeta.net/forums.php

Tiny issue, but should be a quick fix?

Just checked and yep, it's going to the right place now. Thanks! :)