Osm2pgsql failed due to ERROR: Error loading lua config: ...l/share/lua/5.2/osml10n/get_localized_name_from_tags.lua:1: module 'unaccent' not found

Question

i am using this project from github :( https://github.com/giggls/osml10n/blob/master ) i have completed all the installation steps but when i run this command (:osm2pgsql -G -O flex -d osm -S openstreetmap-carto-hstore-only-l10n.lua ../openstreetmap-carto-de/data/gcc-states-latest.osm.pbf ) i have the following error can anyone tell me how can u fix it. ERROR ( Osm2pgsql failed due to ERROR: Error loading lua config:...l/share/lua/5.2/osml10n/get_localized_name_from_tags.lua:1: module 'unaccent' not found:

no field package.preload['unaccent
    no file '/usr/local/share/lua/5.2/unaccent.lua'
    no file '/usr/local/share/lua/5.2/unaccent/init.lua'
    no file '/usr/local/lib/lua/5.2/unaccent.lua')