CB Quickstart language files

Hi, it's great the CB Quickstart! But there are a lot of new word keys I have to translate. And I don't find them nor in the language files nor in the transifex language files. Where I have to translate them. A help would be appreciated.

EDIT:
2) I tried to add a line e.g. in Religion, but when I try to save, I get an error notification: "Forbidden. You do not have permission to access this document."
this is only in some sites. I don't know what I need from my provider!

Transifex language files have already been uploaded. They just need contributors to start translating them. If you'd like to contribute to a language plugin check out localization page below for details. Your alternative is to use language overrides and translate strings there.

www.joomlapolis.com/localization

EDIT:
2) I tried to add a line e.g. in Religion, but when I try to save, I get an error notification: "Forbidden. You do not have permission to access this document."
this is only in some sites. I don't know what I need from my provider!

Sounds like a mod_security false positive from your host. You'll need to contact them regarding that.