`simp bootstrap` is expected to ignore Puppetserver configuration if running on a Puppet Enterprise master. It does not in practice actually ignore the puppetserver configuration and instead completely breaks the PE installation. Namely, it moves away all of the config files, fails to start an instance of puppetserver bound to a different port, and after it times out does nothing to try to restore the old environment leaving the user with an unusable system. The only advice is to "start it by hand" which offers almost nothing of real value.
This is a duplicate of and there are PRs out for that ticket now.