How to reset HSQLDB openfire when <status>false</status> doesn't work

I need to reinstall an Openfire server but to change false doesn’t work, I managed to stop java’s openfire services and I can set some things up again but I can’t change admin’s password.

I need to delete the HSQLDB in order to make a clean installation of openfire but I don’t know how.

Please help me with this.

I’m on debian.