There seams to be a error with the description in the install screen of the phpbb 3.2.0
when you get to the setting up the board Email

Enable board-wide emails:
If your server is running via SSL set this to enabled else leave as disabled. Having this enabled and not running via SSL will result in server errors during redirects.
the Enable board-wide emails description is the same as the screen befor for setting up HTTPS....

This should be fixed as it can be confusing for new users that are new at installing phpbb