[Pkg-roundcube-maintainers] About trouble with roundcube

[OV7 BIG BOY VALDIVIA]

  Good afternoon. First all, I beg you sorry my english, because I am
spanish speaker.

  Rigth to point: I have installed roundcube in my debian 9 Strech,
but it never appears on the web, like is described at apache2 files
127.0.0.1/roundcube, but, it's not my problem.
  I have removed it with purge option, and then I did installed again,
but it never created again its own configuration files. How can I do?,
I have to reinstall whole debian to fix it?

  PD: Some time ago, I leave debian on etch release, and began to use
other distro, now, I have returned because I think it have better
perfomance. I know that this trouble is not concert directily to
roundcube, it is with all packages, but maybe you can help me.
   Thanks.