Hey @cat.mp4 ,
Glad to hear you’ve already figured it out. Indeed the asset root folder in the zip file is a bit confusing, it’s only there to make the asset library happy. In your project the plugin needs to be installed into /addons/godotopenxrvendors. This is what also happens when you install the plugin from the asset library.
If its not installed in the correct location, all sorts of things go wrong. Or worse yet, you may end up with two versions, one in the correct location and one in the incorrect location.