The following language keys are duplicated and because of that can not be translated in the normal way:
total_comments processing
r__categories r__categories_manage r__settings r__settings_manage rss_offline select_category sort_asc sort_desc tags_predefined tags_predefined_desc topic_settings total_comments total_views url comments subcategories enable
Please, make all above key unique. Example: videos_total_comments
General example is on the attached picture below: