Having the same issues.
Fresh install on self hosted wordpress under Plesk.
Version is 5.8, all components fresh and latest updates.
Not able to get register or activate pages created.
The pages Members, Activity and Groups are created, but doesn’t have any content – and thus does not work.
Had high hopes for this plugin, but it turns out to be another dud.
Sorry, there seems to be too much automation and no control over this to even bother with it.
There are no good guides as to how one produces these pages manually after install.
Buddypress just isn’t worth it.