Seems like the language Pack Installation failed. Did you have a working Internet connection in the live mode?
P.S. Maui 2 should still work after a reboot but might miss all the French localization. (e.g that packages listed in the error message like kde-l10n-fr and so on)
P.S. Maui 2 should still work after a reboot but might miss all the French localization. (e.g that packages listed in the error message like kde-l10n-fr and so on)