Ultramodernui seems to use language files from:
%PROGRAMFILES%\NSIS\Contrib\Modern UI\Language files\
But on 2.30, this folder does not exist anymore.
Try to recover this folder from version 2.29 (http://downloads.sourceforge.net/nsi...3&big_mirror=0
This is very crappy but work for me ïŠ
Hope that next UltramodernUI beta will solve this, but when â€¦