Error message loading essentials

I’ve tried loading Essentials and keep getting this message. I’ve reinstalled it, but keep getting the same message (Mac Mini 4, OS 15.5)

“One of the files required by this plug-in cannot be found. Please reinstall the plug-in or contact technical support for assistance”

What does that have to do with WaveLab?

I get the below message,

and wavelab quits when I click on ok

There is a WaveLab logo, but this is not a WaveLab message.
The WaveLab logo can be explained simply because WaveLab is the host application.
This is probably a message from some plugin. You should contact the provider of this plugin.

How do I find out which plugin is the culprit?

Does this happen when opening an audio montage?

It happens on startup. Is there acrash log somewhere ( I’m on Mac)

Hold down the command key while launching WaveLab. This will reach the startup assistant, and from there you can skip any audio montage loading.