Vital will not open in Logic on a mac

Vital does not open and gives this message:
validating Audio Unit Vital by Vital Audio:

AU Validation Tool
Version: 1.6.1a1 
Copyright 2003-2013, Apple Inc. All Rights Reserved.
Specify -h (-help) for command options

VALIDATING AUDIO UNIT: ‘aumu’ - ‘Vita’ - ‘Tyte’

Manufacturer String: Vital Audio
AudioUnit Name: Vital
Component Version: 1.5.5 (0x10505)

    • PASS

FATAL ERROR: OpenAComponent: result: -1,0xFFFFFFFF

validation result: couldn’t be opened

Has anybody got a fix? I am running Logic 10.4.4 on Mac OS 10.12.06