You can create a language translation file with Poedit using the .pot file included in the “language” folder of the plugin files.
Translate whatever you wish including “votes”.
Name the created .mo file to: kk-star-ratings-nn_NN.mo where nn and NN need to be the same as your WordPress language.
Upload this file to the folder “/wp-content/languages/plugins” in your WordPress website.
Done.
This a standard practice to translate themes and plugins. Always look for the .pot file. It’s usually included with themes and plugins. As it should be ??