Problem with rhino_3DGS

Dear BRG,
I ask for help because I can’t initialize the 3DGS rhino plug-in. I downloaded the latest release from github (.exe file) and ran the file; I also imported the .rui file to get the toolbar. Everything worked, but at the moment of the plug-in initialization, I get the following messages (attachment).
I hope you can enlighten me on how to fix the problem.
Kind regards.