BuddyPress.org

Don’t start deleting stuff at this stage, it unnecessarily drastic. Earlier you answered yes to setting permalinks so I’m assuming that you didn’t get a message informing you that it couldn’t be written and showing you the code that would need t be added manually.

I would have a read through this page in the WP codex:

https://codex.wordpress.org/Using_Permalinks

and see if any of that helps before deleting stuff or looking at other areas.