Well, I’ve had a quick look around and it seems the company’s site (mentioned in the Kickstarter) doesn’t show but if you change the URL from HTTPS to HTTP then it works! http://www.gomerrobot.com/
Once you add some automated translation that helps a bit… like this.
On the support page you can find some downloads that are available:
Their other pages in English (Twitter, FB) seem to have not been updated since a while ago (~2019). Maybe you’d be better off trying to contact them directly for support (and PDFs in English!).