Your BDOW! (formerly Sumo) settings in Sumo's back-end cannot be translated. It is only available in English. However...
Most public-facing text from BDOW! apps is customizable and we support almost all languages. If you have a multi-language site you can take advantage of multiple campaigns (a Pro feature) and Display Rules to make sure the correct language is showing on the parts of your site that you want it to be shown.