New season—new release. We can't stop coming up with ideas on how to modify Maven Documents. Yet another version contains some new features alongside improvements and bug fixes.
You can use the following link to install or upgrade the application.
Define in the Document Template in what locale data is displayed in the generated document.
Fine-tune the authorization process by giving access only to things that the application needs.
Once you upgrade the application, you would need to make the Language field on the Template Label object non-required:
In Setup, go to the Template Label Object settings and open its Page Layout.
Find the Language field and click on the spanner icon next to it.

Unmark the Required checkbox and click OK.

Save the layout.