As mentioned in the introduction, Polylang does not allow you to easily translate the embedded strings in a plugin or theme. You must first use another tool to translate the strings and then import them into Polylang.
You can use our POEDITOR.COM projects to translate the plugin strings in the languages you need and then download and install these strings in the Awesome Support (or add-on) languages folder.
Once the individual translated language string files are installed in the Awesome Support languages folders then you can proceed with configuring Polylang’s dynamic language switching functionality.
But, first, of course, you have to Activate and Configure Polylang.