While many themes provide automated translation options, not all of the do, but all is not lost if you're willing to roll up your sleeves and get to work.
There is a very handy tool called Poedit ( https://poedit.net/ ) which allows you to edit these files. If you would like to create the translation file, I will be happy to upload it for you. Once you install the tool and save the attached file, it's a matter of clicking on each line item and then creating the desired translation term - then save and send it back to me to upload on our server.
Having said that, the best and easiest way to translate your site into other languages is with Google Translate.
1. Just let the browser do the translation - Google is very good about that. Or,
2. Add the Google Translate Widget to your content or sidebar.
To add the code generated by Google, you'll need to use a Raw HTML Snippet to prevent the <script> code from getting stripped out.