The majority of error messages could be fixed by simply updating to the latest V-Ray version.
However, the following error is associated with bad/corrupt installation:
To resolve this issue:
C:\Program Files\Chaos Group\V-Ray
C:\Users\USERNAME\AppData\Roaming\Chaos Group
C:\ProgramData\SketchUp\SketchUp 20**\SketchUp\Plugins (delete vfs.rb and vfs folders)