I’m sure you have done this, but if not it may be an idea to go back to the start and double check the Scaler version and whether the VST3 is compromised in any way. You can do the latter by taking Live out of the equation.
It may be worth having a look at the following to check the file and stand alone operation.
https://forum.scalermusic.com/t/crashing-my-ableton/11644/7