How can i help translate?
I assume that’s about CMS translations?
If so please see this page https://translations.launchpad.net/xibo/+translations
You will need to create an account on launchpad.
Then there are Xibo 1.7 Series and Xibo github series (1.8) on which you can work and add your own translations.
Once you are done you can request a download from Launchpad and they will send you the mo
file. You can then put that in your locale folder, replacing the one that is already there.