macOS: ‘The DVS Manager service is not available, please try again in a few minutes’

If this is your first installation of DVS on macOS High Sierra (10.13), you may be presented with the following message when running the program:

‘The DVS Manager service is not available, please try again in a few minutes’.

If this is the case, you will need to approve the kernel extension in your Mac’s Security and Privacy settings. Please see https://developer.apple.com/library/content/technotes/tn2459/_index.html for more information.