Chris Knight

nvidia web drivers are not supported on MacOS 10.14 You need to switch back to the Apple supplied drivers. https://www.forbes.com/sites/marcochiappetta/2018/12/11/apple-turns-its-back-on-customers-and-nvidia-with-macos-mojave/#5ec977c537e9

nvidia-update is just an installer for drivers, not a driver in itself. The issue you are having is related to nvidia and Apple having a spat, with the end result...