What NWjs version did you use and what is the addon version? Is worker enabled or disabled? Did you remove Greenworks addon from the project?
Try NWjs 82, Greengrinds 1.5.0, Worker=disabled. You don't need to add any library files after the export, and if you have added them to the project - remove them. Only steam_appid.txt if you want to test without uploading to Steam.
Export with Devtools enabled, run the game on your PC, press F12 and check for error messages in the console.